TOREX XC9519 User Manual

■

)

XC9519 Series

ETR0710-008

Dual Output Step-Up/Inverting DC/DC Converter

■GENERAL DESCRIPTION

The XC9519 series is a 2 channel (step-up and inverting) DC/DC converter IC. One DC/DC converter is a step-up DC/DC and the other is an inverting DC/DC converter. The step-up converter compares a built-in reference voltage 1.0V to the FBP voltage (accuracy ±1.5%) and a positive output voltage can be set freely with the external components up to 18V. The inverting DC/DC converter compares a difference between a reference voltage and the FBN voltage (accuracy ±1.5%) to the GND, then a negative output voltage can be set until -15V with the external components. With a 1.2MHz frequency, the size of the external components can be reduced. As for operation mode, the device can be selected to use PWM control or automatic PWM/PFM switching control by the MODE pin. In the automatic PWM/PFM switching control mode, control switches from PWM to PFM during light loads. The series is highly efficient from light loads through to large output currents. In the PWM control mode, noise is easily reduced since the frequency is fixed. The control mode can be selected for each application. The soft start and current control functions are internally optimized. During stand-by, all circuits in the IC are shutdown to reduce current consumption to as low as 1.0μA or less. The device includes a gate control pin for the P-channel MOSFET which is used for a load disconnection at the stand-by mode. The GAINP and GAINN pins are used for loop compensation in order to optimize load transient response. With the built-in UVLO (Under Voltage Lock Out) function, the internal driver transistor is forced OFF when input voltage becomes 2.2V or lower.

■APPLICATIONS

●AMOLED

-

Smartphones

-

Tablet PCs

- Automotive navigation systems

●CCD image sensors

-

Surveillance cameras

●e-paper

-e-Books

■TYPICAL APPLICATION CIRCUIT

L

P

P-ch MOS

V

C

IN

IN_SW

BSW

PVIN

AVIN

ENP FBN

ENN

C

IN_A

IN_P

AGND

PGND

SWP

XC9519

GAINP

R

ZP

C

ZP

LXP

SBD

P

GAINN

R

ZN

C

ZN

VOUTP

FBP

VREF

MODE

VOUTN

LXN

C

FBP

R

FBP1

R

SP

R

C

FBN2

L_VR

R

FBP2

R

FBN1

SBD

N

C

LN

L

N

■FEATURES

Input Voltage : 2.7V ~ 5.5V Output Current Positive Output Voltage : Negative Output Voltage :

: 500mA @VIN=3.7V, V

(*1)

4.0V

~ 18.0V (accuracy ±1.5% @25oC)

(*2)

-15.0V

~ -4.0V (accuracy ±1.5% @25oC)

OUTP

=5.0V, V

OUTN

=-5.0V

Oscillation Frequency : 1.2MHz Soft-Start Circuit Built-In : Step-up DC/DC converter 2.5ms (TYP.) :

Inverting DC/DC converter 2.2ms (TYP.) Protection Circuits : Over Current Limit (Integral Latching) Short Protection Latching UVLO Thermal Shutdown Over Voltage Protection Function Addition : Control Pin Load disconnect Pin Phase Compensation Pin Ceramic Capacitor Compatible Operating Ambient Temperature

: -40℃ ~ +85℃

Package : QFN-24 Environmentally Friendly

（*1）V

OUTPSET≧VIN

（*2）V

(V

- V

IN

: Forward voltage of SBDN, V

FN

OUTNSET



+ 0.2V (V

+ V

≦20V

FN

: EU RoHS Compliant, Pb Free

:Positive output voltage range)

OUTPSET

: Nagative output voltage range)

OUTNSET

TYPICAL PERFORMANCE

CHARACTERISTICS

V

=5.0V, V

OUTP

CLP, CLN=4×4.7μF, LP, LN=3.3μH (VLF5014S-3R3M2R0), SBDP, SBDN: CMS03

V

OUTP

C

LP

V

OUTN

P-ch MOS: EMH1303, RZP=7.5kΩ, CZP=4.7nF, RZN=130kΩ, CZN=0.47nF

100

V

="H",V

ENP

80

60

40

3.6V

2.7V

Efficiency:EFFI(%

20

0

0.1 1 10 100 1000

Output Current:I

OUTN

="H"

ENN

VIN= 4.4 V

=-5.0V, I

OUT P

OUTP=IOUTN

PWM/PFM (V PWM (V

MODE

, I

(mA)

OUT N

MODE

="L")

="H")

1/38

XC9519 Series

■BLOCK DIAGRAM

* Diodes inside the circuit are an ESD protection diode and a parasitic diode.

■PRODUCT CLASSIFICATION

●Ordering Information

XC9519①②③④⑤⑥-⑦

Internal ON/OFF Controller

DESIGNATOR

①

②③

④

⑤⑥-⑦

(*1)

The “-G” suffix denotes Halogen and Antimony free as well as being fully RoHS compliant.

(*2)

The XC9519 reels are shipped in a moisture-proof packing.

(*1)

UVLO Detect Voltage A

Oscillation Frequency 12 1.2 MHz

Maximum Current Limit A 2.0A

Package (Order Unit) ZR-G QFN-24 (1,000/Reel)

ITEM SYMBOL DESCRIPTION

UVLO Detect Voltage 2.2V UVLO Hysteresis width 0.2V

2/38

(*2)

■PIN CONFIGURATION

*1

*1: The back metal pad, AGND pin and two PGND pins (No. 21 and 22) should be connected outside.

■PIN ASSIGNMENT

XC9519

Series

PIN NUMBER

QFN-24

1, 2

3

4, 5

6

7 8

9

10

11

12

13

14

15

16

17

18, 19

20

21, 22

23

24

PIN NAME FUNCTION

PVIN

NC No Connection

LXN Switching of Inverting DC/DC Converter

VOUTN

MODE Selection Pin for Control Mode

VREF Reference Output Voltage

AVIN Power Supply Input 2

FBN Feedback Pin for Inverting DC/DC Converter

GAINN Loop Compensation Pin for Inverting DC/DC Converter

AGND Analog Ground

GAINP Loop Compensation Pin for Step-Up DC/DC Converter

FBP Feedback Pin for Step-Up DC/DC Converter

ENP Chip Enable Pin for Step-Up DC/DC Converter

BSW P-channel MOS FET Gate Control Pin

VOUTP Output Voltage Sense for Step-Up DC/DC Converter

LXP Switching Output of Step-Up DC/DC Converter

NC No Connection

PGND Power Ground

ENN Chip Enable Pin for Inverting DC/DC Converter

SWP Detect Monitoring Voltage Pin for P-channel MOS FET Drain

Power Supply Input 1

Detect Monitoring of Inverting DC/DC Output Voltage

3/38

XC9519 Series

■FUNCTION

1. ENP Pin Function

ENP PIN STATUS



H Step-up DC/DC Converter Active

L Step-up DC/DC Converter Stand-by

* Please do not leave the ENP pin open.

V

IN

ENP

0V

V

IN

BSW

0V

2.5ms

V

OUTP

V

IN

0V

2. ENN Pin Function

ENN PIN STATUS

H Inverting DC/DC Converter Active

L Inverting DC/DC Converter Stand-by

* Please do not leave the ENP pin open.

V

IN

ENN

0V

V

OUTN

3. MODE Pin Function

MODE PIN STATUS

H Auto PWM/PFM

L PWM Control

* Please do not leave the MODE pin open.

2.2ms

4/38

■ABSOLUTE MAXIMUM RATINGS

PAR AMETER SYMBOL RATINGS UNITS

PVIN Pin Voltage V AVIN Pin Voltage V

ENP Pin Voltage V ENN Pin Voltage V

MODE Pin Voltage V

LXP Pin Voltage V LXN Pin Voltage V FBP Pin Voltage V FBN Pin Voltage V

VOUTP Pin Voltage V VOUTN Pin Voltage V

BSW Pin Voltage V SWP Pin Voltage V

VREF Pin Voltage V

GAINP Pin Voltage V

GAINN Pin Voltage V

LXP Pin Current I LXN Pin Current I

Power Dissipation Pd 1500 (PCB mounted) * mW

Operating Ambient Temperature Topr -40 ~ +85

Storage Temperature Tstg -55 ~ +125

* All voltages are described based on the AGND and PGND pin.

* The value is an example of data which is taken with the PCB mounted. Please refer to our web site for details.

XC9519

Series

Ta =2 5 ℃

-0.3 ~ +6.0 V

PVIN

-0.3 ~ +6.0 V

AVI N

-0.3 ~ +6.0 V

ENP

-0.3 ~ +6.0 V

ENN

-0.3 ~ +6.0 V

MODE

-0.3 ~ +22.0 V

LXP

V

LXN

-0.3 ~ +6.0 V

FBP

-0.3 ~ +6.0 V

FBN

-0.3 ~ +22.0 V

OUTP

V

OUTN

-0.3 ~ +6.0 V

BSW

-0.3 ~ +6.0 V

SWP

-0.3 ~ +6.0 V

REF

-0.3 ~ +6.0 V

GAINP

-0.3 ~ +6.0 V

GAINN

4000 mA

LXP

4000 mA

LXN

-22.0 ~ V

PVIN

-22.0 ~ V

AVI N

+0.3 V

PVIN

+0.3 V

AVI N

o

C

o

C

5/38

OSC

XC9519 Series

■ELECTRICAL CHARACTERISTICS

●XC9519 Series, Common Characteristics

PARAMETER SYMBOL CONDITIONS

2.7 - 5.5 V -

V

UVLO

IN

V

ENP

The voltage which L V

is decreasing from 2.4V.

IN

=1.5V , V

= V

ENN

= 0V, V

FBP

stops oscillation while

XP

Input Voltage

UVLO Detect Voltage

f

=1.2MHz

(*1)

MIN. TYP. MAX. UNITS CIRCUIT

= 0.1V

FBN

Ta=25℃

2.0 2.2 2.4 V ⑨

UVLO Release Voltage

UVLO Hysteresis Range

Supply Current 1

Supply Current 2

Supply Current 3

Stand-by Current

ENP ”H” Voltage

ENP ”L” Voltage

ENP ”H” Current

ENP ”L” Current

ENN ”H” Voltage

ENN ”L” Voltage

ENN ”H” Current

ENN ”L” Current

MODE ”H” Voltage

MODE ”L” Voltage

MODE ”H” Current

MODE ”L” Current

FBP ”H” Current I

FBP ”L” Current I

FBN ”H” Current I

FBN ”L” Current I

SWP ”H” Current I

SWP ”L” Current I

Integral Latch Time

V

UVLOR

V

UVLOH

I

DD1

I

DD2

I

DD3

V

I

STB

V

ENPH

V

ENPL

VIN = V

I

ENPH

VIN = V

I

ENPL

V

ENNH

V

ENNL

VIN = V

I

ENNH

I

VIN = V

ENNL

V

MODEH

V

MODEL

I

VIN = V

MODEH

VIN = V

I

MODEL

VIN =5.5V, V

FBPH

VIN =5.5V, V

FBPL

VIN =5.5V, V

FBNH

VIN =5.5V, V

FBNL

VIN =5.5V, V

SWPH

VIN =5.5V, V

SWPL

t

LAT

=1.5V , V

V

ENP

The voltage which L V

is increasing from V

IN

= V

UVLOH

V

=V

IN

ENP

V

=5.5V, V

FBP

V

= V

IN

ENN

V

= -0.1V

FBN

V

=V

IN

ENP

V

= 5.5V, V

FBP

=5.5V, V

IN

= 5.5V, V

V

IN

The voltage which L V

is increasing from 0.3V.

ENP

= 5.5V, V

V

IN

The voltage which L

Is decreasing from 1.4V.

V

ENP

= 5.5V, V

V

IN

The voltage which L V

is increasing from 0.3V.

ENN

= 5.5V, V

V

IN

The voltage which L V

is decreasing from 1.4V.

ENN

= V

V

IN

ENP

The voltage which supply current decreases while V

MODE

= V

V

IN

ENP

The voltage which supply current increases while V

is decreasing from 1.4V.

MODE

V

=V

IN

ENP =VENN

V

=0.9V, V

FBP

Time to stop operation from the start of maximum

= V

ENN

UVLOR

= V

ENN

FBN

= V

MODE

= V

MODE

OUTP

ENP =VENN

ENN

= 0V, V

FBP

starts oscillation while

XP

UVLO

- V

- 0.2 - V -

UVLO

= V

= 5.5V

MODE

= -0.1V, V

= 5.5V, V

= V

= 5.5V

SWP

= V

MODE

= V

= 0V, V

MODE

starts oscillation while

XP

= V

= 0V, V

MODE

stops oscillation while

XP

= 0.1V

FBN

2.2 2.4 2.6 V ⑨

.

OUTP

ENP

ENN

= V

= 0V

=0V

SWP

= 5.5V

50 170 450 μA ①

30 90 250 μA ①

30 110 250 μA ①

= 0V - 0 1.0 μA ①

= 0V

FBP

1.4 - 5.5 V ⑦

= 0V

FBP

AGND - 0.3 V ⑦

= 5.5V -0.1 - 0.1 μA ⑦ = 0V -0.1 - 0.1 μA ⑦

= V

ENP

= 0V, V

MODE

starts oscillation while

XN

= V

= 0V, V

MODE

stops oscillation while

XN

FBN

= 5.5V

1.4 - 5.5 V ⑦

= 5.5V

AGND - 0.3 V ⑦

= 5.5V -0.1 - 0.1 μA ⑦ = 0V -0.1 - 0.1 μA ⑦

= 5.5V, V

ENN

= 0V,

1.4 - 5.5 V ⑦

is increasing from 0.3V.

= 5.5V, V

ENN

= 0V,

AGND - 0.3 V ⑦

= 5.5V -0.1 - 0.1 μA ⑦

= 0V -0.1 - 0.1 μA ⑦

=V

ENP =VENN

= 5.5V, V

= 0.1V

FBN

=V =V =V =V =V

MODE

=0V, V =0V, V =0V, V =0V, V =0V, V =0V, V

=0V

=5.5V

FBP

=0V -0.1 - 0.1 μA ⑦

FBP

=5.5V

FBN

=0V -0.1 - 0.1 μA ⑦

FBN

=5.5V

SWP

=0V -0.1 - 0.1 μA ⑦

SWP

-0.1 - 0.1 μA ⑦

1.0 2.0 3.0 ms ⑤

current limit status.

Thermal Shutdown

Temperature

Thermal Shutdown

Release Temperature

Thermal Shutdown

Hysteresis Range

- 150 - oC -

T

TSD

- 130 - oC

T

TSDR

T

HYS

=T

TSDR

- T

- 20 -

TSD

(*1) If the applied voltage and its pin name are not stated, those pins are left open for measurement.

o

C -

-

6/38

■ELECTRICAL CHARACTERISTICS (Continued)

●XC9519 Series, Step-up DC/DC Converter

PARAMETER SYMBOL CONDITIONS

V

Output Voltage Range

FBP Voltage

Oscillation Frequency

PFM Switching Current

Maximum Duty Cycle

LXP SW “H” ON

Resistance

LXP SW “H” Leak

Current

Maximum Current Limit

FBP Voltage

Temperature

(*3)

(V

OUTPSET

V

FBP

f

OSCP

VIN =V

I

PFMP

D

MAXP

VIN = V

R

LXPH

VIN =5.5V, V

I

LEAKH

I

LIMP



V

/

FBP

・



Topr)

FBP

V

= V

= 3.6V, V

IN

ENP

V

= V

SWP

= 3.6V

OUTP

The voltage which L

is decreasing.

V

FBP

V

= V

= 3.6V, V

IN

ENP

V

= V

SWP

= V

ENP

= 3.6V, V

ENP

= V

SWP

= 3.6V, V

ENP

= 5.5V, V

ENP

= 0.9V, V

= 3.6V, V

MODE

= 3.6V, V

=0V, V

ENP

OUTP

V V

OUTP

= V

IN

OUTP

=V

IN

FBP

-40 oC≦Topr≦85 oC - ±100 - ppm /

Characteristics

V

= 3.6V, V

Soft-Start Time

IN

V

t

SSP

OUTP

Time to start L

= V

ENN

= 3.6V, V

SWP

XP

(0V→3.6V) V

=V

= 5.5V, V

IN

Short Protection

Threshold Voltage

V

SHORTP

ENP

V

= V

SWP

= 5.5V

OUTP

The voltage which the integral latch time becomes 200μs or less while V V

= V

= 3.6V, V

IN

ENP

V

= V

Over Voltage

Protection Limit

BSW Pin Current

CL Discharge Resistance

V

R

OVPP

I

BSW

DCHGP

OUTP

The voltage which L V

FBP

V

IN

V

OUTP

V

IN

V

OUTP

= V

= 6.0V, V

= 3.6V, V

SWP

is increasing.

= 3.6V, V

ENP

= V

= 3.6V, V

SWP

ENP =VENN

= 4.0V

ENN

XP

ENN

= 3.6V, V

ENN

LXP

ENN

= V

SWP

= V

MODE

oscillation from the rise of V

ENN

XP

ENN

(*1)

MIN. TYP. MAX. UNITS CIRCUIT

= V

= 0V

MODE

starts oscillation while

= V

= 0V

MODE

=0V

FBP

=0V 180 350 550 mA ⑧

ENN

= V

= 0V

MODE

=0V

FBP

= V

MODE

= 0V, I

= 100mA - 0.12 0.28 Ω ④

LXP

=5.5V - 0.01 1.0 μA ⑥

= V

=0V

MODE

= 5.5V

= 0V

= 0.95V

FBP

= V

GAINP

MODE

= 3.6V

=0V

is decreasing.

FBP

= 0V

ENP

.

stops oscillation while

= V

= 0V

MODE

=3.6V

BSW

= V

= 0V

MODE

XC9519

Series

Ta=25℃

(*2)

4.0

0.985 1.000 1.015 V ③

1020 1200 1380 kHz ③

84 90 97 % ③

2000 - 4000 mA ⑤

0.8 2.5 5.2 ms ③

0.3 0.5 0.7 V ⑤

V

FBP

+0.03

0.2 1.2 3.0 mA ⑦

50 200 500 Ω ②

- 18.0 V -

o

C-

V

+0.07

FBP

V

FBP

+0.10

V ③

NOTE: (*1) If the applied voltage and its pin name are not stated, those pins are left open for measurement.

(*2) Input voltage or positive output voltage range should be V

OUTPSET≧VIN

+ 0.2V.

(*3) Maximum current limit denotes the level of detection at peak of coil current.

7/38

XC9519 Series

■ELECTRICAL CHARACTERISTICS (Continued)

●XC9519 Series, Inverting DC/DC Converter

PARAMETER SYMBOL CONDITIONS

-15.0

(*3)

V

OUTNSET

= V

V

FBN

The voltage which L

V

REF

V

OUTNA

V

f

OSCN

VIN = V

I

PFMN

V

D

MAXN

VIN = V

R

LXNL

V

I

LEAKL

V

I

LIMN



V

REF

(V

・



REF

V

/

-40 oC≦Topr≦85 oC - ±100 - ppm /

To pr )

= 3.6V, V

IN

ENN

is increasing.

FBN

= V

= 3.6V, V

IN

ENN

=V

ENN

= 0.1V

-V

REF

= 3.6V, V

= V

= 3.6V, V

= 5.5V, V

OUTNA

= V

IN

= V

IN

= V

IN

= V

IN

FBN

ENP

XN

ENP

0.985 1.000 1.015 V -

FBN

ENP

= 3.6V, V

MODE

ENP

Output Voltage Range

FBN Voltage

Reference Voltage

Output Voltage Accuracy

Oscillation Frequency

PFM Switching Current

Maximum Duty Cycle

LXN SW “L” ON

Resistance

LXN SW “L” Leak

Current

Maximum Current Limit

Reference Voltage

Temperature

Characteristics

Soft-Start Time

t

SSN

= 3.6V, V

V

IN

Time to start L

= V

ENP

MODE

oscillation from the rise of V

XN

(0V→3.6V)

= V

Short Protection

Threshold Voltage

Over Voltage

Protection Limit

CL Discharge Resistance

V

SHORTN

V

R

DCHGN

OVPN

V

IN

The voltage which the integral latch time becomes 200μs or less while V

V

IN

The voltage which L V

FBN

V

IN

V

OUTN

= 5.5V, V

ENN

= V

= 3.6V, V

ENN

is decreasing.

= 6.0V, V

ENP =VENN

= -4.0V

ENP

XN

NOTE: (*1) If the applied voltage and its pin name are not stated, those pins are left open for measurement.

(*2) Input voltage or positive output voltage range should be V

(*3) Maximum current limit denotes the level of detection at peak of coil current.

IN

8/38

(*1)

MIN. TYP. MAX. UNITS CIRCUIT

= V

= 0V

MODE

starts oscillation while

= V

= 0V, V

MODE

= V

= 0V, V

MODE

= 0V 220 350 550 mA ⑧

ENP

= V

= 0V, V

MODE

= V

= 0V, I

MODE

= V

= 0V, V

MODE

= V

= 0V

MODE

= 0V, V

FBN

= V

= 0V

MODE

FBN

= V

= 0V, V

MODE

= 0.1V 0.970 1.000 1.030 V ①

FBN

= 0.1V 1020 1200 1380 kHz ③

FBN

= 0.1V 84 90 97 % ③

FBN

= 100mA - 0.22 0.48 Ω ④

LXN

= 0.1V - 0.01 1.0 μA ⑥

FBN

= 0.05V

is increasing.

GAINN

stops oscillation while

= V

= 0V

MODE

- V

+ VFN≦20V (VFN: Forward voltage of external schottky barrier diode) .

OUTNSET

ENP

= 3.6V

2000 - 4000 mA ⑤

.

V

-0.10

Ta=25℃

(*2)

- -4.0 V -

-26 0 26 mV ③

o

C -

0.8 2.2 4.0 ms ③

0.3 0.5 0.7 V ⑤

FBN

V

-0.07

FBN

V

FBN

-0.03

V ③

50 200 500 Ω ②

XC9519

Series

■OPERATIONAL EXPLANATION

The XC9519 series consists of a reference voltage source, ramp wave circuit, error amplifier, PWM comparator, phase compensation circuit,

driver transistor, current limiter circuit, short protection circuit, UVLO circuit, thermal shutdown circuit, over voltage protection, load disconnect

control and others. (See the block diagram below.)

By using the error amplifier, the FBP (FBN) pin voltage is compared with the internal reference voltage. The error amplifier output is sent to the

PWM comparator in order to determine the duty cycle of PWM switching. The signal from the error amplifier is compared with the ramp wave from

the ramp wave circuit, and the resulting output is delivered to the buffer driver circuit to provide on-time of the duty cycle at the LXP (LXN) pin.

This process is continuously performed to ensure stable output voltage.

The current feedback circuit monitors the driver transistor current for each switching operation, and modulates the error amplifier output signal

to provide multiple feedback signals. This enables a stable feedback loop even when using a low ESR capacitor such as ceramic, which results in

ensuring stable output voltage.

* Diodes inside the circuit are an ESD protection diode and a parasitic diode.

Internal ON/OFF Controller

9/38

XC9519 Series

■OPERATIONAL EXPLANATION (Continued)

The reference voltage source provides the reference voltage to ensure stable output voltage of the DC/DC converter.

<Step-up DC/DC Converter Error Amplifier>

The step-up DC/DC converter error amplifier is an amplifier for output voltage monitoring. The FBP pin voltage is compared to the reference

voltage. When a voltage lower than the reference voltage is feedback to the FBP pin voltage, the output voltage of the error amplifier goes high.

External compensation of the error amplifier frequency characteristic is also possible.

<Inverting DC/DC Converter Error Amplifier> The inverting DC/DC converter error amplifier is an amplifier for output voltage monitoring. The FBN pin voltage is compared to GND. When a

voltage higher than GND is feedback to the FBN pin voltage, the output voltage of the error amplifier goes high. External compensation of the

error amplifier frequency characteristic is also possible.

The ramp wave circuit determines switching frequency. The frequency is fixed 1.2MHz internally. Clock pulses generated in this circuit are

used to produce ramp waveforms needed for PWM operation, and to synchronize all the internal circuits.

When the AVIN pin voltage becomes 2.2V or lower, the driver transistor is forced OFF to prevent false pulse output caused by unstable

operation of the internal circuitry. When the AVIN pin voltage becomes 2.4V or higher, switching operation takes place. By releasing the UVLO

function, the IC performs the soft start function to initiate output startup operation. The soft start function operates even when the AVIN pin

voltage falls momentarily below the UVLO detect voltage. The UVLO circuit does not cause a complete shutdown of the IC, but causes pulse

output to be suspended; therefore, the internal circuitry remains in operation.

For protection against heat damage of the ICs, thermal shutdown function monitors chip temperature. The thermal shutdown circuit starts

operating and the driver transistor will be turned off when the chip’s temperature reaches 150

after shutting of the current flow, the IC performs the soft start function to initiate output startup operation.

o

C. When the temperature drops to 130 oC or less

, I

In PFM control operation, until coil current reaches to a specified level (I

) that the driver transistor is kept on can be given by the following formula.

(t

ON

t

ON

= L ×I

PFMP

(I

PFMN

) / V

IN

PFMP

), the IC keeps the driver transistor on. In this case, time

PFMN

< PFM Duty Limit >

In PFM control operation, the maximum duty cycle (DTY

(e.g. the condition that the step-up ratio is large), it’s possible for the driver transistor to be turned off even when the coil current doesn’t reach to I

(I

).

PFMN

) is set to 50% (TYP.). Therefore, under the condition that the duty increases

LIMIT_PFM

PFMP

10/38

XC9519

Series

■OPERATIONAL EXPLANATION (Continued)

< CL Auto-Discharge Function >

This function enables high-speed discharge of the charge on the output capacitor (C

means of the internal switch between the VOUTP pin and AGND pin (between the VOUTN pin and AVIN pin).

This function makes it possible to prevent malfunctioning of applications caused by charge remaining on C The discharge time is determined by the C

discharge resistance (R

L

) and CL. Ifτ(τ= CL × R

DCHC

equation for the output voltage discharge time can be obtained from the following CR discharge equation.

ｔ=τln（

V

OUTSET

/ V）

V: Output voltage during discharge

V

: Output voltage

OUTSET

t: Discharge τ: C

L×RDCHG

time

[Example]

When the set voltage (V

discharge time t from the start of C

ｔ=τ

ln ( V

(*1) Calculated with I

OUTPSET

/ V )= CLP×R

= 0mA

OUT

)=5.0V, CLP=18.8μF, and the CL discharge resistance (R

OUTPSET

high-speed discharge until the output voltage falls to 1.0V can be calculated as follows:

L

DCHGP

ln ( V

/ V ) = 18.8μF×200Ω×ln ( 5.0V / 1.0V ) = 6.05×10-3 s = 6.05 ms

OUTPSET

The step-up DC/DC Converter and the Inverting DC/DC Converter are switching synchronously based on one internal clock. The phase of

the step-up driver on timing for the DC/DC Converter is shifted to completely opposite position (180 degrees different) upon the phase of driver on timing for the Inverting DC/DC Converter.

) when an L level signal is input to the ENP (ENN) pin by

L

.

L

) is the time constant of CL and R

DCHG

)=200Ω (TYP.) of the DC/DC Converter, the

DCHGP

(*1)

DCHG

, the

Internal OSC

Inductor Peak Current

1.2MHz

Boost_I

LX

Inverting_I

<Overvoltage Protection> Overvoltage protection monitors the output voltage V (V

) from rising too far above the set voltage. In particular, fluctuations in the load cause the output voltage to rise, and when the FBP (FBN)

OUTN

pin voltage reaches the overvoltage protection detection voltage, the driver transistor of the step-up DC/DC converter (inverting DC/DC converter) is turned off to hold down the rise of output voltage. When the output voltage falls after overvoltage protection detection, normal DC/DC converter operation resumes. The output voltage V

V

OUT_OVP P (VOUT_OVPN

V

OUTPSET (VOUTNSET

[Example]

In a step-up DC/DC converter with the indicated conditions, the output voltage V

calculated as shown below.

Condition: Output Voltage (V V

OUT_OVPP

<Load disconnect Control Circuit> The Load disconnect control circuit makes it possible to break continuity between V step-up DC/DC converter is in the standby state.

0A

LX

0A

OUT_OVP

)=V

OUTPSET (VOUTNSET

): Output voltage, V

= V

OUTPSET

× V

Inductor Peak Current

(V

OUTP

that is detected by overvoltage protection is obtained from the following equation:

) × V

OVP P (VOVPN

OVPP(VOVPN

OUTPSET

= 5.0V × (1.0 + 0.07(TYP.)) =5.0V × 1.07 = 5.35V

OVP

): Detect Overvoltage Protection Voltage

)=5.0V, V

OVPP=VFBP

) using the FBP (FBN) pin voltage, and prevents the output voltage V

OUTN

)

that is detected by overvoltage protection can be

OUT_OVPP

+0.07V(TYP.) , V

=1.0V(TYP.)

FBP

and V

IN

by turning off the external P-ch MOS FET when the

OUTP

11/38

XC9519 Series

■OPERATIONAL EXPLANATION (Continued)

The current limiter circuit of the XC9519 series monitors the current flowing through the driver transistor, and features a combination of the

current limit mode and the operation suspension mode. ① When the driver current is greater than a specific level, the current limit function operates to turn off the pulses from the LXP (LXN) pin at any

given timing.

② When the driver transistor is turned off, the limiter circuit is then released from the current limit detection state. ③ At the next pulse, the driver transistor is turned on. However, the transistor is immediately turned off in the case of an over current state. ④ When the over current state is eliminated, the IC resumes its normal operation.

The IC waits for the over current state to end by repeating the steps ① through ③. If an over current state continues for the integral latch time

and the above three steps are repeatedly performed, the IC performs the function of integral latching the OFF state of the driver transistor, and

goes into operation suspension mode.

Once the IC is in suspension mode, operations can be resumed by either turning the IC off via the ENP (ENN) pin, or by restoring power. Care

must be taken when laying out the PC Board, in order to prevent misoperation of the current limit mode. Depending on the state of the PC Board,

latch time may become longer and latch operation may not work. In order to avoid the effect of noise, the board should be laid out so that input

capacitors are placed as close to the IC as possible.

(a) Step-up DC/DC Converter

I

OUTP

V

OUTP

V

LXP

ENP

(b) Inverting DC/DC Converter

I

OUTN

Limit < 2.0ms(TYP.)

Limit > 2.0ms(TYP.)

Current Limit Level

Restart

Current Limit Level

0mA

AGND,PGND

0mA

V

ENN

OUTN

LXN

Restart

AGND,PGND

<Short-Circuit Protection>

The short-circuit protection circuit monitors the output voltage from the V

OUTP (VOUTN

). In case where output is accidentally shorted to the GND

and when the FBP voltage decreases less than short protection threshold voltage or FBN pin voltage becomes larger than short protection

threshold voltage and a current more than the I

flows to the driver transistor, the short-circuit protection quickly operates to turn off and to latch

LIM

the driver transistor.

Once the IC is in suspension mode, operations can be resumed by either turning the IC off via the ENP (ENN) pin, or by restoring power.

12/38

■EXTERNAL COMPONENTS

<Step-up DC/DC Converter Output Voltage Setting> The output voltage V

The output voltage V

Adjust R

FBP1

and R



V

= V

FBP

× (R

OUTP

Set the output voltage so that V

 Adjust the value of the phase compensation speed-up capacitor C

series as R

. If a high output voltage is set, inserting a phase compensation speed-up capacitor may cause unstable operation.

SP

Examples of setting C

【Typical Examples】

V

R

OUTP

4.0V

5.0V

9.0V

12.0V

15.0V

18.0V

FBP1

300k

300k 240k 330k 336k 408k

The output voltage V

Adjust R

FBN1

and R



V

= - (V

OUTN

REF

Set the output voltage so that

V

- V

IN

(V

+ V

OUTN

: Forward voltage of external diode SBD

FN

【Typical Examples】

V

R

OUTN

-4.0V

-5.0V

-9.0V

-12.0V

-15.0V

FBN1

300k

300k 270k 360k 360k

of a step-up DC/DC converter can be set by connecting external dividing resistors R

OUTP

is determined by the values of R

OUTP

so that (R

FBP2

+ R

FBP1

and RSP are shown in the next section, “Step-up DC/DC Converter Error Amplifier External Compensation”.

FBP

R

FBP1

) / R

FBP2

OUTP≧VIN

FBP2

+ R

) < 500kΩ.

FBP2

+ 0.2V is satisfied.

FBP1

and R

Ω 100kΩ Ω 75kΩ Ω 30kΩ Ω 30kΩ Ω 24kΩ Ω 24kΩ

of an inverting DC/DC converter can be set by connecting external dividing resistors R

OUTN

is determined by the values of R

OUTN

so that (R

FBN2

- V

≦

20.0V

FN

R

FBN

) × R

FBN1

FBN2

FBN1

/ R

+ R

FBN2

) < 500kΩ.

) is satisfied.

N

FBN1

and R

Ω 75kΩ Ω 60kΩ Ω 30kΩ Ω 30kΩ Ω 24kΩ

as given in the equation below.

FBP2

so that f

FBP

as given in the equation below.

FBN2

=1 / (2 × π × R

zfp

XC9519

and R

FBP1

) is about 40kHz, and insert several kΩ in

FBP1

FBN1

FBP2

and R

.

FBN2

.

Series

13/38

XC9519 Series

■COMPONENT SELECTION METHOD (Continued)

<Step-up DC/DC Converter Error Amplifier External Compensation> External compensation of the frequency characteristic of a step-up DC/DC converter error amplifier is possible with R R

and CZP can be adjusted to obtain the optimum load-transient response (step response). For adjustment using the input voltage and output

ZP

voltage, use the setting values below.

VIN Output Voltage Range LP CLP RZP CZP C

4.7nF 47pF

4.7nF - -

2.2nF - -

4.7nF - -

Li-ion

(2.7～4.4V)

4.6V ≦ V

5.0V < V

9.0V < V

12.0V < V

15.0V < V

≦ 5.0V 3.3μH

OUTP

≦ 9.0V 3.3μH

OUTP

≦ 12.0V 3.3μH

OUTP

≦ 15.0V 3.3μH

OUTP

≦ 18.0V 3.3μH

OUTP

2×4.7μF5.1kΩ

4×4.7μF8.2kΩ

2×4.7μF5.1kΩ

×4.7μF7.5kΩ

4

2×4.7μF 10kΩ

4

×4.7μF 18kΩ

2×4.7μF 16kΩ

×4.7μF 27kΩ

4

2×4.7μF 16kΩ

×4.7μF 24kΩ

4

VIN Output Voltage Range LP CLP RZP CZP C

4.7nF 47pF

2.2nF - -

3.3V±10%

4.0V ≦V

5.0V < V

9.0V < V

12.0V < V

15.0V < V

≦ 5.0V 3.3μH

OUTP

≦ 9.0V 3.3μH

OUTP

≦12.0V 3.3μH

OUTP

≦ 15.0V 3.3μH

OUTP

≦ 18.0V 3.3μH

OUTP

2×4.7μF8.2kΩ

×4.7μF 13kΩ

4

2×4.7μF 16kΩ

×4.7μF 22kΩ

4

2×4.7μF 18kΩ

×4.7μF 30kΩ

4

2×4.7μF 24kΩ

4

×4.7μF 36kΩ

2×4.7μF 22kΩ

×4.7μF 36kΩ

4

VIN V

5.7V ≦ V

7.0V < V

5V±10%

9.0V < V

12.0V < V

15.0V < V

LP CLP RZP CZP C

OUTP

≦ 7.0V 3.3μH

OUTP

≦ 9.0V 3.3μH

OUTP

≦ 12.0V 3.3μH

OUTP

≦ 15.0V 3.3μH

OUTP

≦ 18.0V 3.3μH

OUTP

2×4.7μF4.7kΩ

×4.7μF8.2kΩ

4

2×4.7μF5.1kΩ

×4.7μF 10kΩ

4

2×4.7μF8.2kΩ

×4.7μF 16kΩ

4

2×4.7μF 13kΩ

4

×4.7μF 24kΩ

2×4.7μF 12kΩ

×4.7μF 18kΩ

4

4.7nF 68pF

4.7nF - -

2.2nF - -

4.7nF - -

(*1) Setting value with RFBP1 = 300kΩ (*2) Setting value with RFBP1 = 360k (*3) Setting value with RFBP1 = 240k

Ω Ω

and CZP. The values of

ZP

RSP

FBP

(*1)

4.7k

(*1)

4.7k

RSP

FBP

(*2)

4.7k

(*2)

4.7k

RSP

FBP

(*3)

4.7k

(*3)

4.7k

Ω

14/38

■COMPONENT SELECTION METHOD (Continued)

<Inverting DC/DC Converter Error Amplifier External Compensation> External compensation of the frequency characteristic of an inverting DC/DC converter error amplifier is possible with R

and CZN can be adjusted to obtain the optimum load-transient response (step response). For adjustment using the input voltage and output

of R

ZN

voltage, use the setting values below.

VIN Output Voltage Range LN CLN RZN CZN

and CZN. The values

ZN

XC9519

Series

2×4.7μF 51kΩ

×4.7μF 110kΩ

4

2×4.7μF 68kΩ

×4.7μF 130kΩ

4

2×4.7μF 120kΩ

×4.7μF 200kΩ

4

2×4.7μF 110kΩ

4

×4.7μF 200kΩ

Li-ion

(2.7～4.4V)

-4.0V≧V

-5.0V > V

-9.0V > V

-12.0V > V

≧-5.0V 3.3μH

OUTN

≧-9.0V 3.3μH

OUTN

≧-12.0V 3.3μH

OUTN

≧ -15.0V 3.3μH

OUTN

1.0nF

0.47nF

1.0nF

0.47nF

VIN Output Voltage Range LN CLN RZN CZN

1.0nF

0.47nF

1.0nF

0.47nF

3.3V±10%

-4.0V≧V

-5.0V > V

-9.0V > V

-12.0V > V

≧-5.0V 3.3μH

OUTN

≧-9.0V 3.3μH

OUTN

≧-12.0V 3.3μH

OUTN

≧-15.0V 3.3μH

OUTN

2×4.7μF 51kΩ

4×4.7μF 110kΩ

2×4.7μF 68kΩ

×4.7μF 130kΩ

4

2×4.7μF 120kΩ

4

×4.7μF 200kΩ

2×4.7μF 110kΩ

×4.7μF 200kΩ

4

VIN Output Voltage Range LN CLN RZN CZN

5V±10%

-4.0V≧V

-5.0V > V

-9.0V > V

-12.0V > V

≧-5.0V 3.3μH

OUTN

≧-9.0V 3.3μH

OUTN

≧-12.0V 3.3μH

OUTN

≧-15.0V 3.3μH

OUTN

2×4.7μF 51kΩ

×4.7μF 110kΩ

4

2×4.7μF 68kΩ

×4.7μF 130kΩ

4

2×4.7μF 120kΩ

×4.7μF 200kΩ

4

2×4.7μF 110kΩ

4

×4.7μF 200kΩ

1.0nF

0.47nF

1.0nF

0.47nF

15/38

XC9519 Series

■TYPICAL APPLICATION CIRCUIT

(V

=3.6V, V

IN

OUTP

=5.0V, V

OUTN

=-5.0V)

<Typical Examples> V

=3.6V, V

IN

OUTP

=5.0V, V

OUTN

=-5.0V

・ Capacitor

C C C C C C C C C

For C

minimal reduction of capacitance when a DC bias is applied.

IN_P

IN_SW

IN_A

LP

LN

L_VR

: 4.7nF/ 25V (C1005JB1E472K, TDK-EPC)

ZP

: 0.47nF/ 50V (C1005JB1H471K, TDK-EPC)

ZN

: 47pF/ 50V (C1005CH1H470J, TDK-EPC)

FBP

IN_P, CIN_SW

μF/ 10V (C2012JB1A106M, TDK-EPC)

: 10

μF/ 10V (C2012JB1A475M, TDK-EPC)

: 4.7

μF/ 10V (C1005JB1A104K, TDK-EPC)

: 0.1

μF/ 10V (C2012JB1A475M, TDK-EPC)

: 4×4.7

μF/ 10V (C2012JB1A475M, TDK-EPC)

: 4×4.7

μF/ 6.3V (C1005JB0J224M, TDK-EPC)

: 0.22

, C

IN_A

, CLP, and CLN, use a B characteristic (JIS Standards) or X7R/X5R (EIA Standards), and use a ceramic capacitor with

L_VR

・ Coil, Schottky diode, P-ch MOSFET

L

SBD

P, LN

μH (VLF5014S-3R3M2R0, TDK-EPC)

: 3.3

(MSS5121-332, Coilcraft)

SBDN : XBS304S17R-G (TOREX)

P,

CMS03 (TOSHIBA)

P-ch MOS : EMH1303 (SANYO)

When selecting external components, refer to the specifications of each component and select so as not to exceed the ratings.

・

Resistor R R R

FBP1

FBP2

SP

: 300k : 75k : 4.7k

Ω

R R

FBN1

FBN2

: 300k : 60k

Ω

R R

ZP

ZN

: 8.2k : 110k

Ω

16/38

■TYPICAL APPLICATION CIRCUIT (Continued)

(V

=3.6V, V

IN

OUTP

=15.0V, V

OUTN

=-15.0V)

XC9519

Series

<Typical Examples> V

=3.6V, V

IN

OUTP

=15.0V, V

OUTN

=-15.0V

・Capacitor

C C C C C C C C C

IN_P

IN_SW

IN_A

LP

LN

L_VR

: 2.2nF/ 50V (C1005JB1H222K, TDK-EPC)

ZP

: 0.47nF/ 50V (C1005JB1H471K, TDK-EPC)

ZN

: OPEN

FBP

For C

IN_P, CIN_SW

use a ceramic capacitor with minimal reduction of capacitance when a DC bias is applied.

μF/ 10V (C2012JB1A106M, TDK-EPC)

: 10

μF/ 10V (C2012JB1A475M, TDK-EPC)

: 4.7

μF/ 10V (C1005JB1A104K, TDK-EPC)

: 0.1

μF/ 25V (TMK212BJ475KG, TAIYO YUDEN)

: 4×4.7

μF/ 25V (TMK212BJ475KG, TAIYO YUDEN)

: 4×4.7

μF/ 6.3V (C1005JB0J224M, TDK-EPC)

: 0.22

, C

IN_A

, CLP, and CLN, use a B characteristic (JIS Standards) or X7R/X5R (EIA Standards), and

L_VR

・ Coil, Schottky diode, P-ch MOSFET

L

SBD

P, LN

μH (VLF5014S-3R3M2R0, TDK-EPC)

: 3.3

(MSS5121-332, Coilcraft)

SBDN : XBS304S17R-G (TOREX)

P,

CMS03 (TOSHIBA)

P-ch MOS : EMH1303 (SANYO)

When selecting external components, refer to the specifications of each component and select so as not to exceed the ratings.

・

Resistor R R R

FBP1

FBP2

: OPEN

SP

: 336k : 24k

Ω

R R

FBN1

FBN2

: 360k : 24k

Ω

R R

ZP

ZN

: 27k : 200k

Ω

17/38

XC9519 Series

■TEST CIRCUITS

1) Circuit ① 2) Circuit ②

3) Circuit ③

1μF

V

4) Circuit ④



Wave Form Measure Point

ENP

ENN

MODE

SWP

BSW

PVIN

AVIN

AGND

PGND

IN

LXP

VOUTP

FBP

VREF

FBN

VOUTN

LXN

GAINN

GAINP

0.22μF

47Ω

Wave Form Measure Point

47Ω

100kΩ

V

18/38

■TEST CIRCUITS (Continued)

5) Circuit ⑤

XC9519

Series

6) Circuit ⑥

7) Circuit ⑦

ENP

A

ENN

A

MODE

A

SWP

A

BSW

A A

PVIN

1μF

A

AVIN

AGND

PGND

V

IN

VOUTP

VOUTN

GAINN

GAINP

LXP

FBP

VREF

FBN

LXN

Wave Form Measure Point

A

Wave Form Measure Point

A

47Ω

19/38

XC9519 Series

■TEST CIRCUITS (Continued)

8) Circuit ⑧

9) Circuit ⑨

1. Capacitance between pins

The capacitances between the following pins are omitted in the circuit diagram.

PVIN pin – PGND pin: 1μF

FBP pin - AGND pin: 1μF

FBN pin - AGND pin: 1μF

VREF pin - AGND pin: 1μF

2. Testing method for on resistance

Testing is executed at 100% DUTY using test mode.

20/38

XC9519

Series

■NOTES ON USE

1. For temporary, transitional voltage drop or voltage rising phenomenon, the IC is liable to malfunction should the ratings be exceeded.

2. The characteristics of this IC are highly dependent on peripheral circuits.

When selecting external components, refer to the specifications of each component and select so as not to exceed the ratings.

Some peripheral component selections may cause unstable operation.

Before use, sufficiently test operation using the actual equipment.

3. When the input voltage V

is low and the output voltage V

IN

OUTP/VOUTN

the set output voltage may not be output.

4. If the step-up ratio is high and excessive load current flows, the input current may be limited by the maximum duty limit and maximum current

limit protection and short-circuit protection may not activate.

5. Do not connect a component other than C

If a component other than C

is connected, the output voltage V

L_VR

to the VREF pin.

L_VR

6. For external components, use the components specified in the standard circuit examples and component selection methods.

7. When the input voltage VIN is high and the output voltage V

OUTP/VOUTN

8. If the step-up ratio is low in a step-up DC/DC converter, the output voltage V

= "H").

(V

MODE

Step-up DC/DC Converter: PWM/PFM MODE (V

=4.4V, V

IN

V

="H", V

ENP

OUTP

ENN

=5.0V, I ="L", V

OUTP

MODE

=200mA

="H")

=4×4. 7μF

C

LP

=3. 3μH (VLF 5014S-3R 3M2R0)

L

P

: CMS03

SBD

P

P-ch MOS: EMH1303

=7. 5k Ω, CZP=4.7nF

R

ZP

V

OUT P

:50mV/div

time:20μs/div

9. During PFM/PWM switching control (V

= "H"), the output voltage may become unstable near switching between PFM mode and PWM mode.

MODE

Step-up DC/DC Converter: PWM/PFM MODE (V

=3.6V, V

IN

V

="H", V

ENP

OUTP

ENN

=5.0V, I

="L", V

OUTP

MODE

=120mA

="H")

=4×4. 7μF

C

LP

=3. 3μH (VLF5014S-3R3M2R0)

L

P

: CMS03

SBD

P

P-ch MOS: EMH1303

=7. 5k Ω, CZP=4.7 nF

R

ZP

is high, the input current may be limited by the maximum duty limit and

of an inverting DC/DC converter may become unstable.

OUTN

is low, intermittent oscillation may occur during PWM control.

may become unstable during PFM/PWM switching control

OUTP

time:10μs/div

V

OUT P

:20mV/div

21/38

XC9519 Series

■NOTES ON USE (Continued)

10. During PWM control (V

Inverting DC Converter: PWM MODE (V

=5.5V, V

IN

V

="L", V

ENP

OUTN

ENN

=-15.0V, I ="H", V

time:50μs/div

11. Torex places an importance on improving our products and their reliability.

We request that users incorporate fail-safe designs and post-aging protection treatment when using Torex products in their systems.

= "L"), the output voltage may become unstable at light loads.

MODE

=4×4. 7μF

C

LN

=3. 3μH (VLF 5014S-3R 3M2R0)

L

N

: CMS03

SBD

N

R

=200kΩ , CZN=0.47nF

ZN

MODE

OUTN

="L")

=100mA

V

OUT N

:20mV/div

22/38

XC9519

Series

■NOTES ON USE (Continued)

●Notes on Layout

1. Position external components close to the IC so that the wiring is thick and short.

2. To minimize input voltage fluctuations, place C

3. Make the GND wiring sufficiently strong. Fluctuations of AGND or PGND voltage due to GND current during switching may cause unstable IC operation.

4. When creating a layout, refer to the circuit diagram and recommended layout pattern below.

5. This product is incorporated into a driver, and thus the driver transistor current and on-resistance may cause heat generation.

SBD

L

P

P-ch MOS

SWP

BSW

PVIN

AVIN

V

IN

C

IN_SW

ENP

C

IN_A

IN_P

ENN

AGND

PGND

GAINP

R

ZP

C

ZP

P

LXP

GAINN

R

C

ZN

IN_P

VOUTP

FBP

VREF

FBN

MODE

VOUTN

LXN

and C

R

FBP1

as close as possible to the IC.

IN_A

V

OUTP

C

FBP

C

LP

R

SP

R

FBP2

R

FBN2

C

R

FBN1

SBD

L

L_VR

V

OUTN

N

C

LN

N

●Recommended Pattern Layout

Front Back side see-through

23/38

)

XC9519 Series

■TYPICAL PERFORMANCE CHARACTERISTICS

(1)

Efficiency vs. Output Current

100

Step-up DC/DC Converter (V

C

=4×4.7μF, LP=3.3μH (VLF5014S-3R3M2R0)

LP

SBDP: CMS03, P-ch MOS: EMH1303, RZP=7.5kΩ, CZP=4.7nF

V

="H",V

ENN

="L"

ENP

OUTP

=5.0V)

Inverting DC/DC Converter (V

C

LN

100

V

="L", V

ENN

="H"

ENP

=-5.0V)

=4×4.7μF, LN=3.3μH (VLF5014S-3R3M2R0)

SBDN: CMS03, RZN=130kΩ, CZN=0.47nF

OUTN

80

60

40

2.7V

VIN= 4.4V

3.6V

Efficiency:EFFI(%

20

0

0.1 1 10 100 1000

Output Current:I

100

Efficiency:EFFI(%

Step-up DC/DC Converter (V

C

=4×4.7μF, LP=3.3μH (VLF5014S-3R3M2R0)

LP

SBDP: CMS03, P-ch MOS: EMH1303, RZP=27kΩ, CZP=2.2nF

V

="H", V

ENP

80

60

40

20

0

0.1 1 10 100 1000

="L"

ENN

VIN= 5.5V

3.6V

Output Current:I

(2) Output Voltage vs. Output Current

5.2

5.1

(V)

OUTP

Step-up DC/DC Converter (V

C

=4×4.7μF, LP=3.3μH (VLF5014S-3R3M2R0)

LP

SBDP: CMS03, P-ch MOS: EMH1303, RZP=7.5kΩ, CZP=4.7nF

V

ENP

="H",V

ENN

="L"

V

4.4V,3. 6V,2. 7V

＝

IN

PWM/PFM (V PWM (V

MODE

(mA)

OUT P

OUTP

PWM/PFM (V PWM (V

MODE

(mA)

OUTP

="H")

MODE

="L")

=15.0V)

="H")

MODE

="L")

=5.0V)

80

60

40

2.7V

VIN= 4.4V

3.6V

Efficiency:EFFI(%

20

PWM/PF M (V PWM (V

0

0.1 1 10 100 1000

Output Current:I

Inverting DC/DC Converter (V

C

=4×4.7μF, LN=3.3μH (VLF5014S-3R3M2R0)

LN

100

V

="L", V

ENN

="H"

ENP

SBDN: CMS03, RZN=200kΩ, CZN=0.47nF

OUTN

(mA)

OUTN

80

60

3.6V

40

Efficiency:EFFI(%

20

VIN= 5.5V

PWM/PF M (V PWM (V

0

0.1 1 10 100 1000

Output Current:I

Inverting DC/DC Converter (V

C

=4×4.7μF, LN=3.3μH (VLF5014S-3R3M2R0)

LN

-4.8

V

="L",V

ENP

(V)

-4.9

OUTN

SBDN: CMS03, RZN=130kΩ, CZN=0.47nF

="H"

ENN

OUTN

3.6V

(mA)

OUTN

="L")

MODE

=-15.0V)

MODE

="L")

MODE

=-5.0V)

V

IN

MODE

＝

="H")

4.4V

5.0

4.9

Output Voltage:V

PWM/PFM (V PWM (V

MODE

="L")

="H")

4.8

0.1 1 10 100 1000

Output Current:I

OUTP

(mA)

Output Voltage:V

-5.0

2.7V

-5.1

PWM/PFM (V PWM (V

-5.2

MODE

="L")

0.1 1 10 100 1000

Output Current:I

OUTN

(mA)

="H")

24/38

)

■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)

(2) Output Voltage vs. Output Current (Continued)

Step-up DC/DC Converter (V

C

=4×4.7μF, LP=3.3μH (VLF5014S-3R3M2R0)

LP

15.4

SBDP: CMS03, P-ch MOS: EMH1303, RZP=27kΩ, CZP=2.2nF

V

="H", V

ENN

="L"

ENP

OUTP

=15.0V

Inverting DC/DC Converter (V

C

=4×4.7μF, LN=3.3μH (VLF5014S-3R3M2R0)

LN

-14.6

V

="L", V

ENN

="H"

ENP

OUTN

SBDN: CMS03, RZN=200kΩ, CZN=0.47nF

XC9519

Series

=-15.0V

15.2

(V)

OUTP

15.0

3.6V

14.8

Output Voltage:V

14.6

0.1 1 10 100 1000

Output Current:I

(3) Ripple Voltage vs. Output Current

100

Ripple Voltage : Vr(mVp-p)

Step-up DC/DC Converter (V

C

=4×4.7μF, LP=3.3μH (VLF5014S-3R3M2R0)

LP

SBDP: CMS03, P-ch MOS: EMH1303, RZP=7.5kΩ, CZP=4.7nF

V

="H",V

ENN

="L"

4.4V

3.6V

2.7V

ENP

80

60

40

VIN= 2.7V,3. 6V,4.4V

20

V

5.5V

＝

IN

PWM/PF M (V PWM (V

(mA)

OUTP

PWM/PF M (V PWM (V

MODE

OUTP

MODE

="H")

MODE

="L")

=5.0V)

="H")

MODE

="L")

(V)

OUTN

Output Voltage:V

100

Ripple Voltage : Vr(mVp-p)

-14.8

V

V,3.6V

＝5.5

IN

-15.0

-15.2

PWM/PF M (V PWM (V

-15.4

MODE

0.1 1 10 100 1000

Output Current:I

Inverting DC/DC Converter (V

C

=4×4.7μF, LN=3.3μH (VLF5014S-3R3M2R0)

LN

SBDN: CMS03, RZN=130kΩ, CZN=0.47nF

V

="L", V

ENN

="H"

ENP

(mA)

OUTN

PWM/PF M (V PWM (V

MODE

80

60

4.4V

40

VIN= 2.7V,3. 6V,4.4V

20

2.7V

3.6V

="H")

MODE

="L")

=-5.0V)

="H")

MODE

="L")

0

0.1 1 10 100 1000

Output Current:I

OUTP

(mA)

0

0.1 1 10 100 1000

Output Current:I

OUTN

(mA)

100

Ripple Voltage : Vr(mVp-p)

Step-up DC/DC Converter (V

C

=4×4.7μF, LP=3.3μH (VLF5014S-3R3M2R0)

LP

SBDP: CMS03, P-ch MOS: EMH1303, RZP=27kΩ, CZP=2.2nF

V

="H",V

ENP

="L" PWM/PF M (V

ENN

PWM (V

OUTP

MODE

=15.0V

="H")

MODE

="L")

80

60

5.5V

40

VIN= 2.7V,3. 6V,4.4V

2.7V

3.6V

20

0

0.1 1 10 100 1000

Output Current:I

OUTP

(mA)

Inverting DC/DC Converter (V

C

=4×4.7μF, LN=3.3μH (VLF5014S-3R3M2R0)

LN

100

V

="L", V

ENN

="H"

ENP

SBDN: CMS03, RZN=200kΩ, CZN=0.47nF

OUTN

PWM/PFM (V PWM (V

80

60

VIN= 5.5V

40

20

Ripple Voltage : Vr(mVp-p)

2.7V

3.6V

0

0.1 1 10 100 1000

Output Current:I

OUTN

(mA)

MODE

=-15.0V)

="H")

MODE

="L")

25/38

XC9519 Series

■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)

(4) Oscillation Frequency vs. Ambient Temperature

1.5

1.4

(MHz)

OSC P

1.3

VIN=5. 5V3.6V

1.2

1.1

2.7V

1.0

Os c illation Frequency : f

0.9

-50 -25 0 25 50 75 100

Ambient Temperature: Ta (℃)

(5) Supply Current 1,2,3 vs. Ambient Temperature

250

A)

200

μ

(

DD1

Supply Current 1 Supply Current 2

VIN=5.5V

1.5

1.4

(MHz)

OSC N

1.3

VIN=5.5V3.6V

1.2

1.1

2.7V

1.0

Oscillation Frequenc y : f

0.9

-50 -25 0 25 50 75 100

Ambient Temperature: Ta (℃)

200

A)

150

μ

(

DD2

VIN=5. 5V

150

2.7V

100

Supply Current 1: I

50

-50 -25 0 25 50 75 100

Ambient Temperature: Ta (

Supply Current 3

℃

)

100

50

Supply Current 2: I

0

-50 -25 0 25 50 75 100

Ambient Temperature: Ta (

2.7V

℃

)

200

A)

μ

(

150

DD3

VIN=5.5V

100

2.7V

50

Supply Current 3: I

0

-50 -25 0 25 50 75 100

Ambient Temperature: Ta (

℃

)

26/38

■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)

(6) FBP Voltage vs. Ambient Temperature (7) Output Voltage Accuracy vs. Ambient Temperature

XC9519

Series

1.02

VIN=5.5V

1.01

(V)

FBP

1.00

2.7V,3. 6V

0.99

FBP Voltage : V

0.98

-50 -25 0 25 50 75 100

Ambient Temperature: Ta (

(8) UVLO Voltage vs. Ambient Temperature

2.7

2.6

2.5

2.4

UVLO R elease Voltage

℃

1.02

(V)

VIN=5.5V

OUTN A

1.01

1.00

2.7V

3.6V

Output Voltage Accuracy : V

0.99

0.98

-50 -25 0 25 50 75 100

)

Ambient Temperature: Ta (℃)

2.3

2.2

UVLO Detect Voltage

UVLO Voltage : UVLO (V)

2.1

V

="H", V

ENP

ENN

2.0

-50-25 0 25 50 75100

Ambient Temperature: Ta (

(9) ENP "H" Voltage vs. Ambient Temperature

1.4

1.3

(V)

1.2

ENPH

1.1

1.0

0.9

ENP "H" Voltage : V

0.8

VIN=5.5V, V

ENN

0.7

-50-25 0 255075100

Ambient Temperature: Ta (

="L", V

℃

="L", V

℃

)

MODE

="L"

(10) ENP "L" Voltage vs. Ambient Temperature

1.2

1.1

(V)

1.0

ENPL

0.9

0.8

0.7

ENP "L" Voltage : V

0.6

0.5

-50 -25 0 25 50 75 100

Ambient Temperature: Ta (

VIN=5. 5V, V

ENN

="L",V

℃

="L"

MODE

)

27/38

XC9519 Series

■TYPICAL PERFORMANCE CHARACTERISTICS(Continued)

(11) ENN "H" Voltage vs. Ambient Temperature

1.4

(12) ENN "L" Voltage vs. Ambient Temperature

1.2

1.3

(V)

1.2

ENNH

1.1

1.0

0.9

ENN "H" Voltage : V

0.8

VIN=5.5V, V

ENP

="L", V

0.7

-50 -25 0 25 50 75 100

Ambient Temperature: Ta (

℃

(13) MODE "H" Voltage vs. Ambient Temperature

1.4

1.3

(V)

1.2

MODEH

1.1

MODE

)

="L"

1.1

(V)

1.0

ENNL

0.9

0.8

0.7

ENN "L" Voltage : V

0.6

VIN=5. 5V, V

ENP

="L",V

MODE

0.5

-50 -25 0 25 50 75 100

Ambient Temperature: Ta (

℃

)

(14) MODE "L" Voltage vs. Ambient Temperature

1.2

1.1

(V)

1.0

MODEL

0.9

="L"

1.0

0.9

0.8

MODE "H" Voltage : V

VIN=5. 5V, V

ENP

="H", V

ENN

="L"

0.7

-50 -25 0 25 50 75 100

Ambient Temperature: Ta (

℃

)

(15) LXP SW “H” ON Resistance vs. Ambient Temperature

0.3

(Ω)

LXPH

0.2

2.7V

0.1

3.6V VIN=5. 5V

LXP SW “H” ON Res istanc e :R

0.0

-50 -25 0 25 50 75 100

Ambient Temperature: Ta (

℃

)

0.8

0.7

0.6

MODE "L" Voltage : V

VIN=5. 5V, V

ENP

="H", V

ENN

="L"

0.5

-50 -25 0 25 50 75 100

Ambient Temperature: Ta (

℃

)

(16) LXN SW "L" ON Resistance vs. Ambient Temperature

0.5

(Ω)

0.4

LXNL

0.3

0.2

0.1

LXN SW “L” ON Resistance :R

0.0

-50 -25 0 25 50 75 100

Ambient Temperature: Ta (

2.7V

3.6V VIN=5. 5V

℃

)

28/38

)

■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)

(17) Output Voltage Rise Wave Form

Step-up DC/DC Converter (V

C

=4×4.7μF, LP=3.3μH (VLF5014S-3R3M2R0)

LP

SBDP: CMS03, P-ch MOS: EMH1303, RZP=27kΩ, CZP=2.2nF

VIN=3.6V,V

ENN

="L",V

MODE

="L"

OUTP

=15.0V

Inverting DC/DC Converter (V

C

=4×4.7μF, LN=3.3μH (VLF5014S-3R3M2R0)

LN

SBDN: CMS03, RZN=200kΩ, CZN=0.47nF

VIN=3.6V,V

ENP

="L",V

MODE

="L"

OUTN

1ch

V

OUTP

1ch

V

OUTN

2ch

1ch:5V/ div, 2ch: 5V/di v

V

= 0 ⇒ 3.6V

ENP

time:500μs/div

2ch

1ch:5V/ div, 2ch: 5V/di v

V

= 0 ⇒ 3.6V

ENN

time:500μs/div

(18) Soft Start Time vs. Ambient Temperature

5.0

Step-up DC/DC Converter Inverting DC/DC Converter

4.0

XC9519

Series

=-15.0V)

4.5

4.0

(ms)

3.5

SSP

3.6V

VIN=5.5V

3.0

2.5

2.0

Soft Start Time : t

1.5

2.7V

1.0

-50-25 0 25 50 75100

Ambient Temperature: Ta (

℃

)

(19) Maximum Duty Cycle vs. Ambient Temperature

96

(%)

94

MAXP

92

90

Step-up DC/DC Converter Inverting DC/DC Converter

3.5

(ms)

3.0

SSN

VIN=5.5V3.6V

2.5

2.0

Soft Start Time : t

1.5

2.7V

1.0

-50-25 0 25 50 75100

Ambient Temperature: Ta (

℃

)

96

(%)

94

MAXN

92

90

88

86

Maximum Duty Cycle : D

VIN=3.6V,V

ENP

="H",V

ENN

="L", V

84

-50 -25 0 25 50 75 100

Ambient Temperature: Ta (

℃

)

MODE

="L"

88

86

Maximum Duty Cycle : D

VIN=3.6 V,V

ENP

="L", V

ENN

="H",V

84

-50 -25 0 25 50 75 100

Ambient Temperature: Ta (

℃

MODE

)

="L"

29/38

XC9519 Series

■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)

(20) Maximum Current Limit vs. Ambient Temperature

Step-up DC/DC Converter (V

C

=4×4.7μF, LP=3.3μH (VLF5014S-3R3M2R0)

LP

SBDP: CMS03, P-ch MOS: EMH1303, RZP=7.5kΩ, CZP=4.7nF

5.0

OUTP

=5.0V)

Inverting DC/DC Converter (V

C

=4×4.7μF, LN=3.3μH (VLF5014S-3R3M2R0)

LN

SBDN: CMS03, RZN=130kΩ, CZN=0.47nF

5.0

OUTN

=-5.0V)

4.5

(A)

LIMP

4.0

2.7V

VIN=4. 4V

3.5

3.0

3.6V

2.5

Maximum Current Limit : I

V

="H",V

ENP

ENN

="L", V

MODE

="L"

2.0

-50 -25 0 25 50 75 100

Ambient Temperature: Ta (℃)

Step-up DC/DC Converter (V

C

=4×4.7μF, LP=3.3μH (VLF5014S-3R3M2R0)

LP

SBDP: CMS03, P-ch MOS: EMH1303, RZP=27kΩ, CZP=2.2nF

OUTP

=15.0V)

5.0

4.5

(A)

LIMP

4.0

3.6V

3.5

4.5

(A)

LIMN

4.0

VIN=4.4 V

3.5

3.0

2.7V

2.5

Maximum Current Limit : I

V

="L",V

ENP

ENN

2.0

-50 -25 0 25 50 75 100

Ambient Temperature: Ta (℃)

Inverting DC/DC Converter (V

C

=4×4.7μF, LN=3.3μH (VLF5014S-3R3M2R0)

LN

SBDN: CMS03, RZN=200kΩ, CZN=0.47nF

5.0

4.5

(A)

LIMN

4.0

3.5

VIN=5.5V

3.6V

="H", V

OUTN

="L"

MODE

=-15.0V)

3.0

2.5

Maximum Current Limit : I

2.0

V

="H", V

ENP

-50 -25 0 25 50 75 100

Ambient Temperature: Ta (℃)

(21) Latch Time vs. Ambient Temperature

3.0

2.5

(ms)

LAT

2.0

1.5

Integral Latch Time :t

1.0

-50 -25 0 25 50 75 100

Ambient Temperature: Ta (℃)

2.7V

3.6V

VIN=5.5V

="L", V

ENN

VIN=5. 5V

MODE

="L"

3.0

2.5

3.6V

Maximum Current Limit : I

V

="L", V

ENP

ENN

="H", V

MODE

="L"

2.0

-50 -25 0 25 50 75 100

Ambient Temperature: Ta (℃)

30/38

■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)

(22) CL Discharge Resistance vs. Ambient Temperature

400

Step-up DC/DC Converter

Inverting DC/DC Converter

400

XC9519

Series

(Ω)

350

DCHGP

300

2.7V

250

200

3.6V VIN=5. 5V

150

Discharge Resistanc e: R

L

C

100

-50 -25 0 25 50 75 100

Ambient Temperature: Ta (℃)

(23) PFM Switching Current vs. Ambient Temperature

Step-up DC/DC Converter (V

C

=4×4.7μF, LP=3.3μH (VLF5014S-3R3M2R0)

LP

SBDP: CMS03, P-ch MOS: EMH1303, RZP=7.5kΩ, CZP=4.7nF

550

500

(mA)

450

PFMP

VIN=4.4V

400

OUTP

=5.0V)

(Ω)

350

DCHGN

300

2.7V

250

200

3.6V VIN=5. 5V

Discharge Resistanc e: R

L

C

150

100

-50 -25 0 25 50 75 100

Ambient Temperature: Ta (℃)

Inverting DC/DC Converter (V

C

=4×4.7μF, LN=3.3μH (VLF5014S-3R3M2R0)

LN

SBDN: CMS03, RZN=130kΩ, CZN=0.47nF

OUTN

=-5.0V)

550

500

(mA)

450

PFMN

VIN=4. 4V

400

350

300

3.6V

250

200

PFM Switching Current : I

V

="H",V

ENP

ENN

="L",V

MODE

="H"

150

-50 -25 0 25 50 75 100

Ambient Temperature: Ta (℃)

Step-up DC/DC Converter (V

C

=4×4.7μF, LP=3.3μH (VLF5014S-3R3M2R0)

LP

SBDP: CMS03, P-ch MOS: EMH1303, RZP=27kΩ, CZP=2.2nF

OUTP

=15.0V)

550

500

(mA)

450

PFMP

400

VIN=5. 5V

350

300

250

3.6V

350

300

250

200

PFM Switching Current : I

150

-50 -25 0 25 50 75 100

Ambient Temperature: Ta (℃)

Inverting DC/DC Converter (V

C

=4×4.7μF, LN=3.3μH (VLF5014S-3R3M2R0)

LN

550

500

(mA)

450

PFMN

400

350

300

250

3.6V

V

="L", V

ENN

="H", V

OUTN

ENP

SBDN: CMS03, RZN=200kΩ, CZN=0.47nF

VIN=5. 5V

3.6V

="H"

MODE

=-15.0V)

PFM Switching Current : I

200

V

="H",V

ENN

="L",V

MODE

ENP

150

-50 -25 0 25 50 75 100

Ambient Temperature: Ta (℃)

="H"

200

PFM Switching Current : I

V

="H", V

ENP

ENN

="L",V

MODE

="H"

150

-50 -25 0 25 50 75 100

Ambient Temperature: Ta (℃)

31/38

XC9519 Series

■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)

(24) Load Transient Response

Step-up DC/DC Converter: PWM/PFM MODE

(VIN=3.6V, V

C

=4×4.7μF, LP=3.3μH (VLF5014S-3R3M2R0), SBD

LP

P-ch MOS: EMH1303, RZP=8.2kΩ, CZP=4.7nF, C

V

="H",V

ENP

V

OUTP

1ch

2ch

1ch:200mV/di v, 2ch:200mA/di v

OUTP

ENN

=5.0V, I

="L",V

I

= 1 ⇒ 200mA

OUTP

=1⇒200mA)

OUTP

="L"

MODE

time:100μs/div

P

=47pF, RSP=4.7kΩ

FBP

Step-up DC/DC Converter: PWM/PFM MODE

=3.6V, V

(V

IN

C

=4×4.7μF, LP=3.3μH (VLF5014S-3R3M2R0), SBD

LP

P-ch MOS: EMH1303, RZP=8.2kΩ, CZP=4.7nF, C

V

="H",V

ENP

V

OUTP

1ch

2ch

1ch:200mV/di v, 2ch:200mA/di v

OUTP

ENN

="L",V

I

= 1 ⇒ 200mA

OUTP

=5.0V, I

MODE

OUTP

="H"

time:100μs/div

=1⇒200mA)

P

=47pF, RSP=4.7kΩ

FBP

: CMS03

Step-up DC/DC Converter: PWM MODE

(VIN=3.6V, V

C

=4×4.7μF, LP=3.3μH (VLF5014S-3R3M2R0), SBD

LP

P-ch MOS: EMH1303, RZP=8.2kΩ, CZP=4.7nF, C

V

="H",V

ENN

="L",V

ENP

V

OUTP

1ch

2ch

1ch:200mV/di v, 2ch:200mA/di v

OUTP

MODE

I

= 200 ⇒ 1mA

OUTP

=5.0V, I

="L"

t ime: 1ms / div

=200⇒1mA)

OUTP

FBP

Step-up DC/DC Converter: PWM/PFM MODE

(VIN=3.6V, V

C

=4×4.7μF, LP=3.3μH (VLF5014S-3R3M2R0), SBD

LP

P-ch MOS: EMH1303, RZP=8.2kΩ, CZP=4.7nF, C

V

="H",V

ENN

="L",V

ENP

V

OUTP

1ch

2ch

1ch:200mV/di v, 2ch:200mA/di v

OUTP

MODE

I

= 200 ⇒ 1mA

OUTP

=5.0V, I

="H"

t ime: 1ms / div

=200⇒1mA)

OUTP

FBP

=47pF, RSP=4.7kΩ

: CMS03

P

: CMS03

P

32/38

■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)

XC9519

Series

Step-up DC/DC Converter: PWM MODE

=3.6V, V

(V

IN

C

SBDP: CMS03, P-ch MOS: EMH1303, RZP=27kΩ, CZP=2.2nF

V

="H",V

ENP

ENN

V

OUTP

1ch

2ch

1ch:500mV/di v, 2ch:50mA/di v

=15.0V, I

OUTP

=4×4.7μF, LP=3.3μH (VLF5014S-3R3M2R0)

LP

="L",V

="L"

MODE

I

= 1 ⇒ 50mA

OUTP

=1⇒50mA)

OUTP

time:200μs/div

Step-up DC/DC Converter: PWM/PFM MODE

(VIN=3.6V, V

SBDP: CMS03, P-ch MOS: EMH1303, RZP=27kΩ, CZP=2.2nF

V

="H",V

ENP

ENN

=15.0V, I

OUTP

C

=4×4.7μF, LP=3.3μH (VLF5014S-3R3M2R0)

LP

="L",V

="H"

MODE

=1⇒50mA)

OUTP

Step-up DC/DC Converter: PWM MODE

(VIN=3.6V, V

SBDP: CMS03, P-ch MOS: EMH1303, RZP=27kΩ, CZP=2.2nF

V

="H",V

ENP

V

OUTP

1ch

2ch

1ch:500mV/di v, 2ch:50mA/di v

ENN

C

="L",V

=15.0V, I

OUTP

=4×4.7μF, LP=3.3μH (VLF5014S-3R3M2R0)

LP

="L"

MODE

I

= 50 ⇒ 1mA

OUTP

=50⇒1mA)

OUTP

t ime: 1ms / div

Step-up DC/DC Converter: PWM/PFM MODE

(VIN=3.6V, V

SBDP: CMS03, P-ch MOS: EMH1303, RZP=27kΩ, CZP=2.2nF

V

="H",V

ENN

="L",V

ENP

=15.0V, I

OUTP

C

=4×4.7μF, LP=3.3μH (VLF5014S-3R3M2R0)

LP

="H"

MODE

=50⇒1mA)

OUTP

V

OUTP

1ch

2ch

1ch:500mV/di v, 2ch:50mA/di v

I

= 1 ⇒ 50mA

OUTP

time:200μs/div

V

OUTP

1ch

2ch

1ch:500mV/di v, 2ch:50mA/di v

I

= 50 ⇒ 1mA

OUTP

t ime: 1ms / div

33/38

XC9519 Series

■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)

Inverting DC/DC Converter: PWM MODE

(VIN=3.6V, V

V

="L",V

ENP

V

OUTN

1ch

2ch

1ch:200mV/di v, 2ch:200mA/di v

=-5.0V, I

OUTN

C

=4×4.7μF, LN=3.3μH (VLF5014S-3R3M2R0)

LN

SBDN: CMS03, RZN=130kΩ, CZN=0.47nF

="H",V

I

= 1 ⇒ 200mA

OUTN

MODE

="L"

ENN

=1⇒200mA)

OUTN

time:100μs/div

Inverting DC/DC Converter: PWM/PFM MODE

(VIN=3.6V, V

V

="L",V

ENP

=-5.0V, I

OUTN

C

=4×4.7μF, LN=3.3μH (VLF5014S-3R3M2R0)

LN

SBDN: CMS03, RZN=130kΩ, CZN=0.47nF

="H",V

MODE

="H"

ENN

=1⇒200mA)

OUTN

Inverting DC/DC Converter: PWM MODE

(VIN=3.6V, V

V

="L",V

ENP

V

OUTN

1ch

2ch

1ch:200mV/di v, 2ch:200mA/di v

=-5.0V, I

OUTN

C

=4×4.7μF, LN=3.3μH (VLF5014S-3R3M2R0)

LN

SBDN: CMS03, RZN=130kΩ, CZN=0.47nF

="H",V

MODE

I

= 200 ⇒ 1mA

OUTN

="L"

ENN

=200⇒1mA)

OUTN

time:500μs/div

Inverting DC/DC Converter: PWM/PFM MODE

(VIN=3.6V, V

V

="L",V

ENP

=-5.0V, I

OUTN

C

=4×4.7μF, LN=3.3μH (VLF5014S-3R3M2R0)

LN

SBDN: CMS03, RZN=130kΩ, CZN=0.47nF

="H",V

MODE

="H"

ENN

=200⇒1mA)

OUTN

V

OUTN

1ch

2ch

1ch:200mV/di v, 2ch:200mA/di v

I

= 1 ⇒ 200mA

OUTN

time:100μs/div

V

OUTN

1ch

2ch

1ch:200mV/di v, 2ch:200mA/di v

I

= 200 ⇒ 1mA

OUTN

time:500μs/div

34/38

■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)

XC9519

Series

Inverting DC/DC Converter: PWM MODE

(VIN=3.6V, V

V

="L",V

ENP

V

1ch

2ch

OUTN

1ch:500mV/di v, 2ch:50mA/di v

1ch:200mV/div,2ch:200mA/div

=-15.0V, I

OUTN

C

=4×4.7μF, LN=3.3μH (VLF5014S-3R3M2R0)

LN

SBDN: CMS03, RZN=200kΩ, CZN=0.47nF

="H",V

ENN

="L"

MODE

I

= 1 ⇒ 50mA

OUTN

time:100μs/div

=1⇒50mA)

OUTN

Inverting DC/DC Converter: PWM/PFM MODE

(VIN=3.6V, V

V

="L",V

ENP

=-15.0V, I

OUTN

C

=4×4.7μF, LN=3.3μH (VLF5014S-3R3M2R0)

LN

SBDN: CMS03, RZN=200kΩ, CZN=0.47nF

="H",V

MODE

="H"

ENN

=1⇒50mA)

OUTN

Inverting DC/DC Converter: PWM MODE

(VIN=3.6V, V

V

="L",V

ENP

V

1ch

2ch

OUTN

1ch:500mV/di v, 2ch:50mA/di v

1ch:200mV/div,2ch:200mA/div

=-15.0V, I

OUTN

C

=4×4.7μF, LN=3.3μH (VLF5014S-3R3M2R0)

LN

SBDN: CMS03, RZN=200kΩ, CZN=0.47nF

="H",V

ENN

="L"

MODE

I

= 50 ⇒ 1mA

OUTN

time:500μs/div

=50⇒1mA)

OUTN

Inverting DC/DC Converter: PWM/PFM MODE

(VIN=3.6V, V

V

="L",V

ENP

ENN

=-15.0V, I

OUTN

C

=4×4.7μF, LN=3.3μH (VLF5014S-3R3M2R0)

LN

SBDN: CMS03, RZN=200kΩ, CZN=0.47nF

="H",V

="H"

MODE

=50⇒1mA)

OUTN

V

OUTN

1ch

2ch

1ch:500mV/di v, 2ch:50mA/di v

1ch:200mV/div,2ch:200mA/div

I

= 1 ⇒ 50mA

OUTN

time:100μs/div

V

OUTN

1ch

2ch

1ch:500mV/di v, 2ch:50mA/di v

1ch:200mV/div,2ch:200mA/div

I

= 50 ⇒ 1mA

OUTN

time:500μs/div

35/38

XC9519 Series

■PACKAGING INFORMATION

●

QFN-24 (unit:mm)

●

QFN-24 Reference Pattern Layout (unit:mm) ●QFN-24 Reference Metal Mask Design (unit:mm)

6

5

4

3

2

1

1 PIN INDENT

4.0±0.10

789

2.8±0.05

0.075

0.40±0.05

10 11 12

13

14

15

16

17

18

192021222324

36/38

■MARKING RULE

1pin

 01〜09, 0A〜0Z, 11〜9Z, A1〜A9, AA〜AZ, and B1〜ZZ repeated

*No character inversion used.

QFN-24

①②③④⑤⑥

① represent product series.

MARK PRODUCT SERIES

9 XC9519******-G

② represents UVLO detect voltage.

MARK UVLO VOLTAGE PRODUCT SERIES

A Detect: 2.2V, Hysteresis Width: 0.2V XC9519A*****-G

③④ represents oscillation frequency and maximum current limit.

MARK

③ ④

1 2 1.2MHz 2.0A XC9519*12A**-G

⑤⑥ represents production lot number.

(G, I, J, O, Q, W excluded)

OSCILLATION

FREQUENCY

MAXIMUM

CURRENT LIMIT

XC9519

Series

PRODUCT SERIES

37/38

XC9519 Series

1. The products and product specifications contained herein are subject to change without

notice to improve performance characteristics. Consult us, or our representatives

before use, to confirm that the information in this datasheet is up to date.

2. We assume no responsibility for any infringement of patents, patent rights, or other

rights arising from the use of any information and circuitry in this datasheet.

3. Please ensure suitable shipping controls (including fail-safe designs and aging

protection) are in force for equipment employing products listed in this datasheet.

4. The products in this datasheet are not developed, designed, or approved for use with

such equipment whose failure of malfunction can be reasonably expected to directly

endanger the life of, or cause significant injury to, the user.

(e.g. Atomic energy; aerospace; transport; combustion and associated safety

equipment thereof.)

5. Please use the products listed in this datasheet within the specified ranges.

Should you wish to use the products under conditions exceeding the specifications,

please consult us or our representatives.

6. We assume no responsibility for damage or loss due to abnormal use.

prior permission of TOREX SEMICONDUCTOR LTD.

38/38

TOREX XC9519 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual