TOREX XC9119D10A User Manual

■

■

■

■

XC9119D10A Series

ETR0408_007a

1MHz, PWM Controlled,
Step-Up DC/DC Converter, Ceramic Capacitor Compatible

GENERAL DESCRIPTIO N

The XC9119D10A series is 1MHz, PWM controlled step-up DC/DC converter, designed to allow the use of ceramic
capacitors. With a built-in 2.0Ω switching transistor, the XC91 19D10A series can easily provide a step-up operation by using
only a coil, a diode, a capacitor, and a resistor, connected externally.
Since output voltage up to 19.5V (Maximum Lx operating voltage: 20V) ca n be derived with reference voltage supp ly of 1.0V
(±2.0%) and external components, the series can easily supply high voltage for various general-purpose pow er supplies, LCD
panels and organic EL displays.
With a high switching frequency of 1.0MHz, a low profile and small boar d area solution can be achieved using a chip coil and
an ultra small ceramic output capacitor.
With the current limit function (400mA (TYP.): V
limited. Soft-start time can be adjusted by external resistors and capacitors. The stand-by function enables the output to
be turned off (CE ’L’), that is, the supply current will be less than 1.0μA.

■APPLICATIONS

●Organic electroluminescence display (OELD)

●Power supplies for LCD panels

●Various general-purpose power supplies

TYPICAL APPLICATION CIRCUIT

DD=3.6V), a peak current, which flows through built-in driver transistors can be

FEATURES

Operating Voltage Range : 2.5V ~ 6.0V
Output Voltage Range : Up to 19.5V externally set-up

: Reference voltage 1.0V +

Oscillation Frequency : 1.0MHz±20%
ON Resistance : 2.0Ω (V
Efficiency : 86%

Control : PWM control
Stand-by function : I
Load Capacitor : Low ESR ceramic capacitor
Ultra Small Packages : SOT-25, USP-6C
Lx Limit Current : 400mA (V

(V

DD=3.6V, VDS=0.4V)

OUT

=15V, VDD=3.6V, I

=1.0μA (MAX.)

STB

=3.6V)

DD

OUT

=10mA)

TYPICAL PERFORMANCE

CHARACTERISTICS

○Efficiency vs. Output Current

XC9119D10A

100

90
80
70
60
50
40
30
20

Efficiency: EFFI(%)

10

0

0.1 1 10 100 1000

VIN=2.5V

2.7V

6V

5V

4.2V

3.6V

3V

Ta=25oC

2.0%

Output Current: I

OUT

(mA)

1/18

■

■

■

■

r

XC9119D10A Series




PIN CONFIGURATION

PIN ASSIGNMENT

SOT-25 USP-6C

CE PIN FUNCTION

CE/SS PIN OPERATIONAL STATE

PRODUCT CLASSIFICATION

●Ordering Information

XC9119D①②③④⑤‑⑥

DESIGNATOR DESCRIPTION SYMBOL DESCRIPTION

SOT-25

(TOP VIEW)

PIN NUMBER

1 2 Lx Switch
2 3 VSS Ground
3 1 FB Voltage Feedback
4 6 CE/SS Chip Enable/ Soft Start
5 4 VDD Power Input

- 5 NC No Connection

H Operation

L Shut-down

(*1)

PIN NAME FUNCTION

USP-6C

(BOTTOM VIEW)

*The dissipation pad for the USP-6C

package should be solder-plated in
recommended mount pattern and metal
masking so as to enhance mounting
strength and heat resistance. If the pad
needs to be connected to other pins, it
should be connected to the V

SS pin.

①② Reference Voltage 10 FB voltage

③ Oscillation Freque ncy A 1MHz

MR SOT-25

④⑤‑⑥

(*1)

The “-G” suffix indicates that the products are Halogen and Antimony free as well as being fully RoHS compliant.

(*2)

The device orientation is fixed in its embossed tape pocket. For reverse orientation, please contact your local Torex sales office o

representative. (Standard orientation: ④R-⑥, Reverse orientation: ④L-⑥)

Packages

Taping Type

(*2)

MR-G SOT-25 (Halogen & Antimony free)

ER USP-6C

ER-G USP-6C (Halogen & Antimony free)

2/18

■

A

■

BLOCK DIAGRAM

V

DD

Error Amp.

FB

CE/SS

Vref with

Soft-start,

+

-

CE

BSOLUTE MAXIMUM RATINGS

Phase

Compensation

+

-

Ramp Wave

Generator, OSC

PARAMETER SYMBOL RATINGS UNITS

VDD Pin Voltage VDD VSS – 0.3 ~ 7.0 V

Lx Pin Voltage VLx VSS – 0.3 ~ 22.0 V
FB Pin Voltage VFB VSS – 0.3 ~ 7.0 V
CE Pin Voltage VCE VSS – 0.3 ~ 7.0 V

Lx Pin Current ILx 1000 mA

Power Dissipation

SOT-25 250

USP-6C

Pd

Operating Temperature Range Topr - 40 ~ + 85

Storage Temperature Range Tstg - 55 ~ +125

PWM Comparat or

120

Current

Limit & Feedback

logic

Buffer
Driver

Ta = 25OC

mW

O

C

O

C

XC9119D10A

Series

X

L

V

SS

3/18

■

■

XC9119D10A Series

ELECTRICAL CHARACTERISTICS

XC9119D10AMR

PARAMETER SYMBOL CONDITIONS MIN. TYP. MAX. UNIT

FB Voltage VFB - 0.980 1.000 1.020 V ①

Line Regulation

△VFB/

△VIN・VFB

2.5<VDD<6.0V - 0.05 0.20 %/V ①

Supply Voltage VDD - 2.5 - 6.0 V ①

Operation Start-up

Voltage
Supply Current 1 IDD1
Supply Current 2 IDD2

VST1 IOUT=0mA - - 2.5 V ②

FB=2.0V

- 450 700 μA ②

- 55 110 μA ②

Stand-by Current ISTB VCE=0V - - 1.0 μA ③

Oscillation Frequency f

Maximum Duty Ratio MAXDTY Same as IDD1

Efficiency (*1) EFFI

Same as IDD1 0.8 1.0 1.2 MHz ②

OSC

VIN=VDD=3.6V, VOUT=15V,

OUT=10mA

I

86 92 98 % ②

- 86 - % ①

Current Limit ILIM VDD=3.6V 310 400 750 mA ④

Lx Operating Voltage

Range

VLx VOUT=18V - - 20.0 V ①

Lx Switch On Resistance RSWON VDD=3.6V, VLx=0.4V, Rpull=10Ω - 2.0 4.0 Ω ②

Lx Leak Current ILxL Same as ISTB

CE “High” Voltage VCEH

CE “Low” Voltage VCEL

Soft-Start

Threshold Voltage

VSST

Applied voltage to CE when Lx pin

voltage holding “H””L” level

Applied voltage to CE when Lx pin

voltage holding “H” level

FB=0.95V, Appli ed volt age to CE

when Lx voltage holding “H””L” level

- - 1 μA ③

0.65 - - V ②

- - 0.20 V ②

1.3 1.6 1.9 V ②

CE “High” Current ICEH Same as IDD2 -0.1 - 0.1 μA ③

CE “Low” Current ICEL Same as ISTB -0.1 - 0.1 μA ③

FB “High” Current IFBH Same as IDD2 -0.1 - 0.1 μA ③

FB “Low” Current IFBL Same as ISTB -0.1 - 0.1 μA ③

Test Condition: Unless otherwise stated, VIN=3.0V, VCE=3.0V, Vpull=5.0V, Rpull=100Ω.
NOTE:

*1: EFFI={(output voltage x output current) / (input voltage) x (input current)} x 100

TYPICAL APPLICATION CIRCUIT

V

IN

2.5V~6.0V

(above 2.5V)

Vcont

R

SS

L

V

DD

Lx

SD

RFB1

VOUT

(up to 19.5V)

C

FB

Ta = 25OC

CIRCUI

T

4/18

C

IN

CE/SS FB

V

C

SS

SS

R

FB2

C

L

XC9119D10A

■OPERATIONAL EXPLANATION

The XC9119D10A series consists of a reference voltage source, ramp wave circuit, error amplifier, PWM comparator, phase
compensation circuit, driver transistor, current limiter circuit and others. The series ICs compare, using the error amplifier, the
voltage of the internal reference voltage source with the feedback voltage from the FB pin. Phase compensation is performed
on the resulting error amplifier output, to input a signal to the PWM comparator to determine the turn-on time during switching.
The PWM comparator compares, in terms of volt age level, the signal from the error amplifier with the ramp wave from the ramp
wave circuit, and delivers the resulting output to the buffer drive circuit to cause the Lx pin to output a switching duty cycle.
This process is continuously performed to ensure stable output v oltage. The curr ent feedback circuit detects the N-channel
MOS driver transistor's 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 a low ESR capacitor, such as a ceramic capacitor, is used,
ensuring stable output voltage.

<Reference Voltage Source>

The reference voltage source provides the reference voltage to ensure stable output voltage of the IC.

<Ramp Wave Circuit>

The ramp wave circuit determines switching frequency. The 1MHz (TYP.) of frequency is fixed internally. Clock pulses
generated in this circuit are used to produce ramp waveforms needed for PWM operation.

<Error Amplifier>

The error amplifier is designed to monitor output voltage. The amplifier compares the reference voltage with the FB pin
voltage. Whe n a voltage lower th an the r eference v oltage is fed back, the output voltage of the error amplifier increases.
Gain and frequency characteristics of the error a mpli fier output are fixed in terna lly as an optimize signal .

<Current Limit >

The current limit circuit of the XC9119D10A series monitors the current flowing through the N-channel MOS driver
transistor connected to the Lx pin, and features a combination of the constant-current type current limit mode and the
duty cycle limit of the next pulse.
①When the driver current is greater than a specific level, the constant-current ty pe current limit function operates to turn

off the pulses from the Lx pin at any given timing.

②The IC controls the next pulse to be smaller than the first pulse.

Series

Current Limit

IL

Lx

1

The current will be off when the coil current
reaches the value of the c onstant current limit.

Current Limit

2

Limit some duty pulses after the limit.

<CE Pin Function>

The operation of the XC9119D10A series will enter into the shut down mode when a low level signal is input to the CE
pin. During the shut down mode, the su pp ly current is 0μA (TYP.), with high impedance at the Lx pin. The IC starts its
operation with a high level signal to the CE pin. The input to the CE pin is a CMOS input and the sink current is 0μA
(TYP.). The hysteresis between the chip enable and the chip disab le is 50mV (TYP.).

<Soft-Start T ime>

Soft-start function operates when capacitors and resistors are connected to the CE/SS pin. With the Vref voltage limited
by the CE/SS pin start-up voltage and applying the input to the error amps, the operation maintains a balance between
the two inputs of the error amps. and controls the Lx pin’s ON time so that it doesn’t increase more than is necessary.
Depending of current limit function, load current, step-up ratio, and external components, the IC takes about 500uS to 5mS
to attain the setting voltage after applying the CE ‘H’ voltage even though the R
connected. (F or a numer ical co nstant, pl ease refe r to Note on Use.) For longer soft-start time, please connect R

SS is 0Ω and a soft start capacitor CSS is not

SS and CSS.

Soft-start function operates while the CE pin voltage is between 0V to around 1.9V. Please be noted that if th e C E/SS pin volt age
does not start from 0V but is in intermediate potential when the power is turned on etc., soft start function may lose an effect and
that will cause a high inrush current and ripple voltage.

5/18

■

XC9119D10A Series

OPERATIONAL EXPLANATION (Continued)

<CE/SS (Pin No. 4): Chip Enable / Soft-Start Pin>

Pin No. 4 can be used as in either chip enable (CE) pin or sof t-start (SS) pin. The IC takes about 5ms at most to attain the setting
voltage after starting operation (CE ‘H’) even though the R
Soft-start function is good for setting a longer time than the start-up time when the R
Soft-start operates while the CE pin voltage increases from 0V to around 1.9V. The following equation is used with the values of
Vcont voltage, the R

SS x RSS x In {(Vcont – 1.6) / Vcont}

T = - C

●Start-up waveform
when the R

Ex.) When CSS=0.1uF, RSS=220kΩ, Vcont=5V,

T= - 0.1e – 6 x 220e3 x In{(5-1.6)/5} = 8.48ms

Ex.) Reference Circuit 1: N-ch Open Drain

SS and the CSS.

SS is 0Ω and the CSS is not connected

SS is 0Ω and the CSS is not connected.

SS is 0Ω and the CSS is not connected.

RSS=0Ω, No CSS, VIN=3.6V, V

0V (1ch) ⇒

0V (2ch) ⇒

Time:500uS/div.

1ch:5V/div., 2ch:2V/div.

C

CE/SS Pin

CE Vref

SS

Vcont

R

Vcont

SS

OUT

1ch: V

2ch: CE

=15V, I

OUT

OUT

=3mA

Error Amp.

ON/OFF

Signal

Ex.) Reference Circuit 2: CMOS Logic (Low Supply Current)

ON/OFF

Signal

Ex.) Reference Circuit 3: CMOS Logic (Low Supply Current), Quick-Off

ON/OFF

Signal

Vcont

R

SS

C

R

SS

C

SS

Vcont

R

SS

C

SS

CE/SS Pin

SS

CE/SS Pin

CE/SS Pin

6/18

■

■

XC9119D10A

OPERATIONAL EXPLANATION (Continued)

<Lx (Pin No. 1): Switch Pin>

Please connect the anode of an Schottky barrier diode and inductor to the Lx pin.

<FB (Pin No. 3): Voltage Feedback Pin>

The reference voltage is 1.0V (TYP.). Output voltage is approximated by the following equation according to the value
for two resistors (R

V

OUT = RFB1 / RFB2 + 1

Output voltage should be set as to fill V
Please adjust the C
about 500Hz. According to the usa ge, adjusting the inductance value, the load capacity value, and so on to the most
suitable operation.

Typical example:

VOUT

(V)

3.3 300 130 1000

5.0 300 75 1000

7.0 180 30 1800

10.0 270 30 1200

15.0 510 36 510

18.0 510 30 510

DD (Pin No. 5): Power Supply Pin>

<V

Please connect an input by-pass capacitor (C

●Application Information

<Obtaining VDD from other source than VIN>

In case that the input voltage V
operations with the input voltage less than 2.5V when voltage from 2.5V to 6.0V is applied to the power source. Please
connect more than 1uF of C

Ex.) When V

1. Please do not exceed the value of stated absolute maximum ratings.

2. The DC/DC converter performance is greatly influenced by not only the ICs’ characteristics, but also by those of the

3. Make sure that the PCB GND traces are as thick as possible, as variations in ground potential caused b y high ground

4. Please mount each external component as close to the IC as possible and use thick, short connecting traces to reduce

5. Please set up the output voltage value so that the Lx pin voltage does not exceed 20V.

OUT=40mA.

to I

NOTES ON USE

external components. Care must be taken when selecting the external components.

currents at the time of switching may result in instability of the IC.

the circuit impedance.

FB1 and RFB2). The sum of the two resistors should be 1MΩ or less.

OUT<(Maximum value of VLx) – (VF of Schottky diode).

FB value of the speed–up capacitor for phase compensation so that fzfb=1/(2

RFB1

(kΩ)

RFB2

(kΩ)

CFB

(pF)

π

x CFB x RFB1) will be

IN).

IN and power source VDD in the step-up circuit are isolated, the circuit starts step-up

DD between the VDD pin and the VSS pin as close as possible.

DD=3.6V, VIN=1.8V, VOUT=5.0V (RFB1=300kΩ, RFB2=75kΩ, CFB=1000pF, CL=10μF), the IC can operate up

V

2.5V~6V

V

IN

DD

C

IN

4.7uF

C

DD

R

SS

C

SS

V

DD

CE/SS

L

SS

V

Lx

FB

SD

R

FB1

C

FB

C

L

10uF

R

FB2

Series

7/18

■

XC9119D10A Series

TEST CIRCUITS

Circuit ①

 Circuit ② Circuit ③

A

V

IN

V

IN

1uF

CE FB

V

CE

V

SS

 Circuit ④

V

IN

4.7uF/10V
(ceramic)

V

IN

CE FB

VCE



1. The measurement method of Lx On resistance RSWON
Using the circuit ②, Lx On resistance can be measured by adjusting Vpull voltage to set Lx voltage V

driver transistor is ON. The oscilloscope is used for measuring the Lx voltage when the driver transistor is ON.

R

SWON = 0.4 / {(Vpull – 0.4) / 10}

2. The measurement method of current limit I
Using the circuit ④, current limit I

decreased while Vpull voltage is adjusted and Lx voltage V
for measuring the Lx voltage when the driver transistor is ON.

ILIM=(Vpull – VLx) / Rpull

OSC

Lx

Rpull

A

220uF

VIN

Vpull

V

FB

10Ω

OSC

Lx

SS

V

2SK583

LIM

LIM can be calculate by the equation including Vpull voltage when FB voltage is

300Ω

100uF/16V

(OS capacitor)

R2

4.3kΩ

R1

1.1kΩ

0.01uF

(ceramic)

Lx when the driver transistor is ON. The oscilloscope is used

1uF

10V

Vpull

V

VIN Lx

A A A

CE FB

SS

V

VCE

47uF/25V
(OS capacitor)

VFB

VLx

Lx x 0.4V when the

8/18

■

m

m

m

m

)

m

)

m

XC9119D10A

Series

TYPICAL PERFORMANCE CHARACTERISTICS

(1) Output Voltage vs. Output Current

(V)

OUT

CFB=1000pF(Ceramic),RFB1=300kohm,RFB2=75koh

5.3

5.2

5.1

5.0

4.9

4.8

Output voltage: V

4.7

0.1 1 10 100 1000

VIN=VDD=VCE,L=4.7uH(CDRH4D18C)

SD:XBS104S14R,CIN=CL=4.7uF(Ceramic)

Ta=25oC

VIN=2.5V

Load current: I

OUT

3V

(mA )

4.5V

CFB=1200pF(Ceramic),RFB1=270kohm,RFB2=30koh

11.0

Ta=25oC

(V)

10.5

OUT

10.0

9.5

Output voltage: V

9.0

0.1 1 10 100 1000

CFB=620pF(Ceramic),RFB1=510kohm,RFB2=36koh

16.0

(V)

15.5

OUT

15.0

14.5

Output voltage: V

14.0

0.1 1 10 100 1000

VIN=VDD=VCE,L=22uH(CDRH4D18C)

SD:XBS104S14R,CIN=CL=4.7uF(Ceramic)

VIN=5V

VIN=2.5V,3V

Load current I

OUT

VIN=6V

(mA )

Ta=25oC

CFB=620pF(Ceramic),RFB1=510kohm,RFB2=30koh

19.0

(V)

18.5

OUT

18.0

17.5

VIN=2.5V,3V

Output voltage: V

17.0

0.1 1 10 100 1000

(2) Efficiency vs. Output Current

Eff iciency: EFFI(%

CFB=1000pF(Ceramic),RFB1=300kohm,RFB2=75koh

100

90
80
70
60
50
40
30
20
10

0

0.1 1 10 100 1000

SD:XBS104S14R,CIN=CL=4.7uF(Ceramic)

Load current: I

VOUT=5V

VIN=VDD=VCE,L=4.7uH(CDRH4D18C)

4.5V

4.2V

VIN=2.5V

OUT

2.7V

3.6V

3V

Ta=25oC

(mA )

CFB=1200pF(Ceramic),RFB1=270kohm,RFB2=30koh

100

90
80
70
60
50
40
30

Efficiency: EFFI(%

20
10

0

0.1 1 10 100 1000

VIN=VDD=VCE,L=22uH(CDRH4D18C)

SD:XBS104S14R,CIN=CL=4.7uF(Ceramic)

VIN=3V

VIN=2.5V

Load current: I

VIN=VDD=VCE,L=22uH(CDRH4D18C)

SD:XBS104S14R,CIN=CL=4.7uF(Ceramic)

Load current: I

OUT

VIN=5V

OUT

VIN=6V

(mA)

VIN=6V

(mA)

VOUT=10V

VIN=VDD=VCE,L=22uH(CDRH4D18C)

SD:XBS104S14R,CIN=CL=4.7uF(Ceramic)

VIN=2.5V

2.7V
3V

Load current: I

OUT

(mA)

VIN=5V

Ta=25oC

6V

5V

4.2V

3.6V

Ta=25oC

9/18

■

)

m

)

m

)

m

)

m

m

m

XC9119D10A Series

TYPICAL PERFORMANCE CHARACTERISTICS (Continued)

(2) Efficiency vs. Output Current (Continued)

Eff iciency: EFFI(%

CFB=620pF(Ceramic),RFB1=510kohm,RFB2=36koh

100

90
80
70
60
50
40
30
20
10

0

0.1 1 10 100 1000

VOUT=15V

VIN=VDD=VCE,L=22uH(CDRH4D18C)

SD:XBS104S14R,CIN=CL=4.7uF(Ceramic)

6V

4.2V

VIN=2.5V

Load current: I

2.7V

OUT

3.6V

3V

Ta=25oC

(mA)

CFB=620pF(Ceramic),RFB1=510kohm,RFB2=30koh

100

5V

90
80
70
60
50
40
30

Eff iciency: EFFI(%

20
10

0

0.1 1 10 100 1000

Efficiency: EFFI(%

CFB=620pF(Ceramic),RFB1=510kohm,RFB2=36koh

100

90
80
70
60
50
40
30
20
10

0

0.1 1 10 100 1000

VOUT=15V

VI N=VDD=VCE=3 .6V, L :CDRH4D18C

SD:XBS104S14R,CIN=CL=4.7uF(Ceramic)

L=22uH

L=10uHL=4.7uH

Ta=25oC

Load current: I

OUT

(mA)

100

CFB=620pF(Ceramic),RFB1=510kohm,RFB2=36koh

90
80

CDRH4D18C

70
60
50
40
30

Eff iciency: EFFI(%

20
10

0

0.1 1 10 100

(3) Ripple Voltage vs. Output Current

Ripple Voltage: Vr (mV)

CFB=1000pF(Ceramic),RFB1=300kohm,RFB2=75koh

100

Ta=25oC

80

60

40

20

0

0.1 1 10 100 1000

VOUT=5V

VIN=VDD=VCE,L=4.7uH(CDRH4D18C)

SD:XBS104S14R,CIN=CL=4.7uF(Ceramic)

4.2V

3.6V

VIN=2.5V,2.7V,3V

Load current: I

OUT

(mA )

4.5V

CFB=1200pF(Ceramic),RFB1=270kohm,RFB2=30koh

100

Ta=25oC

80

VIN=2.5V,2.7V,3V,3.6V,4.2V

60

40

20

Ripple Voltage: Vr (mV)

0

0.1 1 10 100 1000

10/18

VOUT=18V

VIN=VDD=VCE,L=22uH(CDRH4D18C)

SD:XBS104S14R,CIN=CL=4.7uF(Ceramic)

4.2V

VIN=2.5V

Load current: I

2.7V

OUT

3.6V

3V

Ta=25oC

(mA)

VOUT=15V

SD:XBS104S14R,CIN=CL=4.7uF(Ceramic)

Load current: I

VIN=VDD=VCE=3.6V,L =22uH

OUT

VLF3010

Ta=25oC

(mA)

NR3010

VOUT=10V

VIN=VDD=VCE,L=22uH(CDRH4D18C)

SD:XBS104S14R,CIN=CL=4.7uF(Ceramic)

6V

5V

Load current: I

OUT

(mA)

6V

5V

■

m

m

:

XC9119D10A

Series

TYPICAL PERFORMANCE CHARACTERISTICS (Continued)

(3) Ripple Voltage vs. Output Current (Continued)

CFB=620pF(Ceramic),RFB1=510kohm,RFB2=36koh

100

Ta=25oC

80

60

VIN=2 .5 V ,2 .7 V,3 V ,4 .2 V,5 V

40

20

Ripple Voltage: Vr (mV)

0

0.1 1 10 100 1000

VOUT=15V

VIN=VDD=VCE,L=22uH(CDRH4D18C)

SD:XBS104S14R,CIN=CL=4.7uF(Ceramic)

6V

Load current: I

OUT

(mA)

CFB=620pF(Ceramic),RFB1=510kohm,RFB2=36koh

100

Ta=25oC

80

60

VIN=2.5V,2.7V,3V,4.2V,5V

40

20

Ripple Voltage: Vr (mV)

0

0.1 1 10 100 1000

(4) Maximum Output Current vs. Input Voltage

(5) Feedback Voltage vs. Chip Enable Voltage

Maximum load current

450
400
350
300
250
200
150

IOUT_MAX(mA)

100

50

0

234567

VIN=VDD=VCE=3.6V,SD:XBS104S14R

CIN=4.7uF(Ceramic),CL=10uF(Ceramic)

VOUT=5V

L=4.7uH

10V

L=22uH

15V

L=22uH

18V

L=22uH

1.2

(V)

1.0

FB

0.8

0.6

0.4

0.2

Feedback Voltage: V

0.0

00.511.52

I nput Voltage V

(V)

IN

(6) Supply Current 1 vs. Supply Voltage

(7) Supply Current 2 vs. Supply Voltage

(uA)

DD1

1200
1000

Supply Current1: I

VCE=VDD,VFB=0V,Vpull=5V,Rpull=100

800
600

Ta=85oC

400
200

-40oC

0

23456

Supply V olt age: V

DD

(V)

25oC

Ω

(uA)

DD2

140
120
100

80
60
40
20

Supply Current2: I

0

23456

VOUT=18V

VIN=VDD=VCE,L=22uH(CDRH4D18C)

SD:XBS104S14R,CIN=CL=4.7uF(Ceramic)

6V

Load current: I

VDD=3V,Vpull=5V,Rpull=100ohm

Ta=85oC

25oC

Chip Enable Voltage: V

VCE=VDD,VFB=VDD

Ta=85oC

25oC

Supply V olt age: V

OUT

DD

(mA)

-40oC

CE

-40oC

(V)

(V)

11/18

■

F

XC9119D10A Series

TYPICAL PERFORMANCE CHARACTERISTICS (Continued)

(8) Oscillation Frequency vs. Supply Voltage

VFB=0V,VCE=VDD,Rpull=100Ω,Vpull=5V

1.3

1.2

1.1
1

0.9

0.8

0.7

Osc illat ion F requency : Fos c(MHz)

0.6

23456

Supply V olt age: V

(10) Stan-by Current vs. Supply Voltage

）

uA

（

STB

1.0

0.8

0.6

VFB=0V,VCE=0V,Rpull=100Ω,Vpull=5V

0.4

-40oC,25oC

0.2

St andby Current: I

0.0
23456

Supply V olt age:

(12) Current Limit vs. Supply Voltage

900
800
700

(mA)

600

LIM

500
400
300
200

Current Limit: I

100

0

23456

VCE=3.0V,Rpull=10Ω,Tr:2SK583

Supply V olt age: V

12/18

Ta=85oC

25oC

-40oC

DD

VDD

DD

(V)

Ta=85oC

(V)

-40oC

25oC

Ta=85oC

(V)

(9) Maximum Duty Cycle vs. Supply Voltage

VFB=0V,VCE=VDD,Rpull=100Ω,Vpull=5V

98

96

-40oC

94

92

25oC

90

88

86

Maximum Duty Cycle: MAXDTY (%)

23456

Supply V olt age: V

(11) Lx ON Resistance vs. Supply Voltage

VCE=3.0V,VLx=0.4V,Rpull=10Ω,Tr:2SK583

6.0

)

Ω

(

5.0

SWON

4.0

-40oC
25oC

3.0

2.0

Lx ON Res i s tanc e: R

1.0

0.0

Ta=85oC

23456

Supply V olt age: V

(13) Feedback Voltage vs. Supply Voltage

1.02

1.01

1

0.99

Feedback Voltage: VFB(V)

0.98
23456

RFB1=300kohm,RFB2=75kohm,CFB=1000p

25oC

-40oC

Power Supply: VDD(V)

Ta=85oC

(V)

DD

(V)

DD

CIN=CL=4.7uF,L=22uH

Ta=85oC

■

m

m

m

m

TYPICAL PERFORMANCE CHARACTERISTICS (Continued)

(14) CE ‘H’ Voltage vs. Supply Voltage (15) CE ‘L’ Voltage vs. Supply Voltage

0.65

0.60

(V)

0.55

CEH

0.50

0.45

0.40

0.35

0.30

CE ' H' V olt age: V

0.25

0.20
23456

VFB=0V,Vpull=5V,Rpull=100

-40oC

25oC

Supply V olt age: V

DD

Ta=85oC

(V)

Ω

0.65

0.60

0.55

0.50

0.45

0.40

0.35

0.30

CE ' L' V olt age: V CE L(V)

0.25

0.20
23456

VFB=0V,Vpull=5V,Rpull=100

-40oC

25oC

Ta=85oC

Supply V olt age: V DD(V)

(16) Load Transient Response

(V)

OUT

CFB=620pF(Ceramic),RFB1=510kohm,RFB2=36koh

5.10

5.05

5.00

4.95

4.90

4.85

Output Voltage: V

100uA

4.80

VI N=VDD=VCE=3.6 V, L :CDRH4D18C

SD:XBS104S14R,CIN=CL=4.7uF(Ceramic)

Output Voltage

10mA

Load current

60
50
40
30
20
10
0

VI N=VDD=VCE=3.6 V, L :CDRH4D18C

SD:XBS104S14R,CIN=CL=4.7uF(Ceramic)

CFB=620pF(Ceramic),RFB1=510kohm,RFB2=36koh

5.10

5.05

(V)

(mA)

OUT

OUT

5.00

4.95

4.90

Load current: I

4.85

Output Voltage: V

10mA

100uA

4.80

Time (0.2msec /div)

Time (1.0msec/div)

(V)

OUT

CFB=1000pF(Ceramic),RFB1=300kohm,RFB2=75koh

15.10

15.05

15.00

14.95

VIN=VDD=VCE,L=4.7uH(CDRH4D18C)

SD:XBS104S14R,CIN=CL=4.7uF(Ceramic)

Output Voltage

60
50
40

30

CFB=1000pF(Ceramic),RFB1=300kohm,RFB2=75koh

15.10

15.05

(V)

(mA)

OUT

OUT

15.00

14.95

VIN=VDD=VCE,L=4.7uH(CDRH4D18C)

SD:XBS104S14R,CIN=CL=4.7uF(Ceramic)

14.90

14.85

Output Voltage: V

14.80

100uA

10mA

Load current

20
10
0

Load current: I

14.90

14.85

Output Voltage: V

14.80

10mA

100uA

Time (0.5msec/div)

Time (2.0msec/div)

XC9119D10A

Ω

Output Voltage

Load current

Output Voltage

Load current

60
50
40
30
20
10
0

60
50
40

30
20
10
0

Series

(mA)

OUT

Load current: I

(mA)

OUT

Load current: I

13/18

■

XC9119D10A Series

TYPICAL PERFORMANCE CHARACTERISTICS (Continued)

(17) Maximum Output Current vs. Input Voltage

(mA)

160
140

OUT_M AX

120
100

Maximum Output Current:I

SD:XB01B04ABR,L=22uH(CDRH4D18C)

VCE=VDD,CIN=4.7uF(Ceram ic)CL=10uF(Ceramic)

CFB=620pF(Ceramic),RFB1=510kΩ,RFB2=36k

Ta=25oC

6V

80
60
40
20

0

123456

3.6V

VDD=2.5V

Input Voltage V IN(V)

Ω

VCE=VDD,CIN=4.7uF(Ceram ic)CL=10uF(Ceramic)
CFB=1000pF(Ceramic),RFB1=300kΩ,RFB2=75 k

(mA)

500

400

OUT_M AX

I

300

200

100

0

123456

Maximum Output Current:

VOUT=5VVOUT=15V

SD:X B01B 04ABR, L=4.7uH(CDRH4D18C)

Ta=25oC

6V

3.6V

VDD=2.5V

Input Voltage VIN(V)

Ω

14/18

■

PA CKAGING INFORMATION

●SOT-25

XC9119D10A

Series

●USP-6C

15/18

■

XC9119D10A Series

PACKAGING INFORMATION (Continued)

●USP-6C Reference Pattern Layout

●USP-6C Reference Metal Mask Design

16/18

■

●SOT

●

MARKING RULE

-25

(TOP VIEW)

USP-6C

(TOP VIEW)

SOT-25

USP-6C

① represents product series

MARK PRODUCT SERIES

L

XC9119xxxxMx

② repres ents Lx overvoltage limit

MARK Lx OVERVOLTAGE LIMIT PRODUCT SERIES

D Not Available XC9119DxxxMx

③ represents oscillation frequency

MARK OSCILLATION FREQUENCY PRODUCT SERIES

A 1MHz XC9119xxxAMx

④ represents production lot number

0 to 9 and A to Z, or inverted characters 0 to 9 and A to Z repeated.
(G, I, J, O, Q, W excepted)

① represents product series

MARK PRODUCT SERIES

V XC9119xxxxDx

② repres ents Lx overvoltage limit

MARK Lx OVERVOLTAGE LIMIT PRODUCT SERIES

D Not Available XC9119DxxxDx

③④ represents FB voltage

MARK

③ ④

FB VOLTAGE (V) PRODUCT SERIES

1 0 1.0 XC9119x10xDx

⑤ represents oscillation frequency

MARK OSCILLATION FREQUENCY PRODUCT SERIES

A 1MHz XC9119xxxADx

⑥ represents production lot number

0 to 9 and A to Z repeated (G, I, J, O, Q, W excepted)
* No character inversion used.

XC9119D10A

Series

17/18

XC9119D10A Series

1. The products and product specifications cont ained 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.

7. All rights reserved. No part of this datasheet may be copied or reproduced without the
prior permission of TOREX SEMICONDUCTOR LTD.

18/18