TOREX XC6218 User Manual

ETR0329-004

■GENERAL DESCRIPTIO N

XC6218 series are highly precise, low noise, positive voltage LDO regulators manufactured using CMOS processes. The
series achieves very low supply current, 1.0μA (TYP.) and consists of a reference voltage source, an error amplifier,

current limit circuit, and a phase compensation circuit plus a driver transistor.

Ultra small USP-3 and SSOT-24 packages make high density mounting possible. Therefore, the series is ideal for
applications where high density mounting is required such as in mobile phones.
Output voltage is selectable in 0.1V increments within a range of 0.9V～4.0V by laser trimming. The series is also
compatible with low ESR ceramic capacitors (C
The current limiter’s fold-back circuit also operates as a short protect for the output current limiter and the output pin.

■APPLICATIONS

●Portable audios

●Cordless phones,
Wireless communication equipment

●Portable games

●Digital still camera, Digital video recorders

●Mobile phones

●Portable multimedia players

●PDAs

■ TYPICAL APPLICATION CIRCUIT

), which give added output stability.

L

■FEATURES

Maximum Output Current

Dropout Voltage

Operating Voltage Range
Output Voltage
High Accuracy

Low Power Supply
Operating Ambient
Temperature
External Capacitor

Packages

■ TYPICAL PERFORMANCE
CHARACTERISTICS

●Supply Current vs. Input Voltage

3.0

2.5

2.0

XC6218P202

Ta=-40℃

Ta=25℃
Ta=85℃

: 200mA (300mA Limit: TYP.)
(@V

OUT=3.0V, VIN=4.0V)

: 200mV@I
(@V
: 1.5V ~ 6.0V
: 0.9 ~ 4.0V (0.1V increments)

: Setting Voltage Accuracy±2%
(1.5＜V
Setting Voltage Accuracy±30mV

(0.9≦V
: 1.0μA (TYP.)
: - 40℃～85℃

: 0.1μF~1.0μF
: USP-3, SSOT-24

OUT=100mA

OUT=3.0V)

OUT(T)≦4.0V)

OUT(T)≦1.5V)

USP-3

(BOTTOM VIEW)

1.5

1.0

Supply Current: ISS(μA)

0.5

Supply Current : ISS (μA)

0.0
0123456

　Input Voltage: VIN(V)

Input Voltage: VIN (V)

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(

)

(

)

XC6218 Series

■PIN CONFIGURATION

■PIN ASSIGNMENT

■PRODUCT CLASSIFICATION

●Ordering Information

XC6218P①②③④⑤-⑥

PIN NUMBER

USP-3 SSOT-24

1 4 VIN Power Supply
2 3 VOUT Output
3 2 VSS Ground

- 1 NC No Connection

(*1)

BOTTOM VIEW

OUT

USP-3

VIN V

VIN V

V

SS

SSOT-24

TOP VIEW

OUT

V

SS

PIN NAME FUNCTION

DESIGNATOR DESCRIPTION SYMBOL DESCRIPTION

Output voltage

①②

Output Voltage

09～40

“②”represents value after the decimal point.
ex.) 15 ⇒ ①:1, ②: 5 = 1.5V
33 ⇒ ①:3, ②: 3 = 3.3V

Output voltage accuracy less than ±2%,

100mV increments
ex.) 2.5V ⇒ ①=2, ②=5, ③=2

③

Output Voltage

Accuracy

2

HR USP-3

④⑤-⑥

Packages

Taping Type

(*2)

HR-G USP-3

NR SSOT-24

NR-G SSOT-24

(*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 or

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

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■BLOCK DIAGRAM

* The diode inside the circuit is a protection diode for the IC.

■ABSOLUTE MAXIMUM RATINGS

PARAMETER SYMBOL RATINGS UNITS

Input Voltage VIN VSS - 0.3 ~ 7.0 V
Output Current IOUT 500
Output Voltage VOUT VSS - 0.3 ~ VIN + 0.3 V

Power Dissipation

(*1)

USP-3 120

SSOT-24

Pd

Operating Temperature Range Topr - 40 ~ + 85 ℃

Storage Temperature Rang e Tstg - 55 ~ + 125 ℃

*1: IOUT≦Pd / (VIN – VOUT)

XC6218

Series

Ta=25℃

(*1)

mA

150

mW

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XC6218 Series

■ELECTRICAL CHARACTERISTICS

PARAMETER SYMBOL CONDITIONS MIN. TYP. MAX. UNITS CIRCUIT

Output Voltage VOUT(E)

(*2)

VIN=VOUT(T)

0.9V≦V
V

IN=VOUT(T)

Load Regulation

△Vload

1mA≦I

V

IN=VOUT(T)+1.0V

V

1mA≦IOUT≦100mA
Dropout Voltage1 Vdif1
Dropout Voltage2 Vdif2

(*3)

IOUT=30mA

(*3)

IOUT=100mA

Supply Current ISS VIN=VOUT(T)+1.0V

VOUT(T)=0.9V

1.5V≦VIN≦6.0V

Line Regulation

△Vline

VOUT(T)≧1.0V

V

OUT(T)+0.5V≦VIN≦6.0V

Input Voltage VIN

Output Voltage

Temperature

Characteristics

V

V

OUT

IN･VOUT

V

IN=VOUT(T)+1.0V

- 40℃≦Topr≦85℃

(*1)

I

OUT=1mA

OUT(T)

+1.5V

≦100mA

OUT

≧1.3V

OUT(T)

OUT=1mA

I

OUT=1mA

I

I

OUT=1mA

+1.0V

＜1.3V

(*6)

E-0

- 15 70

(*6)

E-1

(*6)

E-1

- 1.0 5.0

- 0.05 0.15

1.5 - 6.0

- ±100 -

ppm/℃ ①

mV

mV
mV

μA ②

%/V

Ta=25℃

V

①

①

①
①

①

V -

VOUT=VOUT(E)×0.95

0.9≦V

Current Limit Ilim

V

OUT=VOUT(E)×0.95

V

OUT(T)≧1.6V

IN=VOUT(T)+1.0V

V
V

Short Circuit Current Ishort

Notes:

*1 : V

OUT(T) : Setting output voltage value

*2 : V

OUT(E) : Effective output voltage value

(i.e. the output voltage when “(V

*3 : Vdif = {V
*4 : V

IN1 : The input voltage when VOUT1 appears as input voltage is gradually decreased.

*5 : V

OUT1 : A voltage equal to 98% of the output voltage whenever an amply stabilized IOUT(VOUT(T)+1.0V) is input.

*6 : Refer to the VOLTAGE CHART.
*7: V

OUT(T)≧1.5V → Accuracy ±2.0%

V

OUT(T)＜1.5V → MIN : VOUT(T) - 30mV, MAX : VOUT(T) + 30mV.

IN1

(*4)

– VOUT1

(*5)

OUT(T) + 1.0V)” is provided at the V

}

IN=VOUT(T)+1.0V

OUT (T)

V

=2.6V

IN

V

OUT=0V

≦1.5V

200 300 -

250 300 -

- 50 -

pin while maintaining a certain IOUT value.

IN

mA

mA

①

①

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■VOLTAGE CHART

SETTING
VOLTAGE

VOUT(T)

0.9 0.870 0.930 460 900 850 1450

1.0 0.970 1.030 370 760 750 1300

1.1 1.070 1.130 300 650 680 1190

1.2 1.170 1.230 240 540 600 1070

1.3 1.270 1.330 190 420 530 950

1.4 1.370 1.430

1.5 1.470 1.530

1.6 1.568 1.632

1.7 1.666 1.734

1.8 1.764 1.836

1.9 1.862 1.938

2.0 1.960 2.040

2.1 2.058 2.142

2.2 2.156 2.244

2.3 2.254 2.346

2.4 2.352 2.448

2.5 2.450 2.550

2.6 2.548 2.652

2.7 2.646 2.754

2.8 2.744 2.856

2.9 2.842 2.958

3.0 2.940 3.060

3.1 3.038 3.162

3.2 3.136 3.264

3.3 3.234 3.366

3.4 3.332 3.468

3.5 3.430 3.570

3.6 3.528 3.672

3.7 3.626 3.774

3.8 3.724 3.876

3.9 3.822 3.978

4.0 3.920 4.080

OUTPUT VOLTAGE

MIN. MAX. TYP. MAX. TYP. MAX.

E-0 E-1 PARAMETER

2.0%
(V)

VOUT(E) Vdif1 Vdif2

DROPOUT VOLTAGE 1

(mV)

160 340 470 840

110 200 350 610

90 150 290 480

70 120 240 370

60 100 200 320

DROPOUT VOLTAGE 2

(mV)

XC6218

Series

Ta=25℃

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XC6218 Series

■TEST CIRCUITS

●Circuit ①

●Circuit ②

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■OPERATIONAL EXPLANATION

<Output Voltage Regulator Control>
The XC6218 series consists of a reference voltage source, an error amplifier, current limit circuit, and a phase
compensation circuit plus a driver transistor. The voltage, divided by resistors R11 & R12, which are conn ected to the
V

OUT pin is compared with the internal reference voltage by the error amplifier. The P-channel MOSFET, which is

connected to the V
controlled & stabilized by negative feedback. The current limit circuit a nd short circuit protection operate in relation to
the level of output current.

<Current Limit, Short-Circuit Protection>
The XC6218 series includes a current limit circuit, which aid the operations of the current limiter and short-circuit
protection. When th e load current reaches the current limit level (300mA, TYP.), the current limiter circuit operates and
output voltage drops. The circuit operates to decrease the current limit as the load impedance decreas es further and

OUT pin, is then driven by the subsequent output signal. The output voltage at the VOUT pin is

the output voltage drops. When the output pin is shorted, a current of about 50mA flows.

XC6218

Series

■ NOTES ON USE

1. Please use this IC within the stated absolute maximum ratings. The IC is liable to malfunction should the ratings be
exceeded.

2. Where wiring impedance is h igh, operations may become u nstable due to noise and/or phase lag de pending on output
current.

3.

The XC6218 series oscillates normally even without an input capacitor, CIN, or an output capacitor, CL, because the series
compensates by the phase compensation circuit. However, when an input wiring is long, about 0.1μF to 1.0μF of the input capacitor ,
C

IN, is required for stabilizing input. When an under-shoot or over-shoot is large at transient response, about 0.1μF to 1.0μF of

output capacitor, which prevents output fluctuation occurred by load fluctuation, is also recommended.

capacitor (C
the output capacitor (C

IN) and the output capacitor (CL) as close to the IC as possible. Please wire the input capacitor (CIN) and

L) as close to the IC as possible.

4. When the input voltage starts from 0V, over-shoot may occur because of the slope of the input rising. In order to avoid
the over-shoot, please use the IC by setting the slope of the input rising within 0.1V/ms.

Please wire the input

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