L1131B

CMOS IC

UNISONICTECHNOLOGIESCO.,LTD

4 of 9

www.unisonic.com.tw

QW-R502-C03.I



ABSOLUTE MAXIMUM RATING

PARAMETER

SYMBOL

RATINGS

UNIT

Input Voltage

VIN

11

V

Input Voltage (CE Pin)

VCE

6.5

V

Output Voltage

VOUT

-0.3 ~ VIN+0.3

V

Output Current

IOUT

200

mA

Power Dissipation

SOT-23

PD

330

mW

SOT-23-5

350

mW

SOT-25

360

mW

SOT-89

530

mW

Operating Temperature Range

TOPR

-40 ~ +125

°C

Storage Temperature Range

TSTG

-55 ~ +125

°C

Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.

Absolute maximum ratings are stress ratings only and functional device operation is not implied.



ELECTRICAL CHARACTERISTICS

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Output Voltage

VOUT

VIN = Set VOUT+1V,

1mA ≤ IOUT ≤30mA

VOUT≤3.0V ×0.985

×1.015

V

VOUT>3.0V ×0.980

×1.020

V

Output Current

IOUT

VIN-VOUT=1.0V

200

mA

Load Regulation

∆VOUT/∆IOUT

VIN=Set VOUT+1V, 1mA≤IOUT≤150mA,

1.2V≤VOUT<2.0V,

28

55

mV

2.0V≤VOUT<3.0V

33

66

mV

3.0V≤VOUT

35

80

mV

Dropout Voltage

VDIF

refer to the ELECTRICAL CHARACTERISTICS by OUTPUT

VOLTAGE

Supply Current

ISS

VIN=Set VOUT+1V,

IOUT=0mA

SOT-23

SOT-89

3.0

μA

SOT-23-5

SOT-25

1.5

2.5

μA

Supply Current (Standby)

Istandby VIN=Set VOUT+1V, VCE =GND

0.1

1.0

μA

Line Regulation

∆VOUT/∆VIN

Set VOUT+0.5V≤VIN≤10V,

IOUT=30mA

0.3

%/V

Ripple Rejection

RR

f=1kHz

50

dB

Input Voltage

VIN

1.8

10

V

Short Current Limit

ILIM

VOUT=0V

60

mA

CE Pull-Down Resistance

IPD

0.5

µA

CE Input Voltage “H”

VCEH

1.5

6.0

V

CE Input Voltage “L”

VCEL

0.0

0.3

V

On Resistance of Nch Tr. for

auto-discharge (Only for D version)

RLOW

VCE=0V

70

Ω



ELECTRICAL CHARACTERISTICS BY OUTPUT VOLTAGE

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Dropout Voltage

VDIF

IOUT=150mA

VOUT=1.2V

0.65

V

1.5V<VOUT≤1.6V

0.48

V

1.6V<VOUT≤1.7V

0.41

V

1.7V<VOUT≤2.0V

0.35

V

2.0V<VOUT≤2.7V

0.21

V

2.7V<VOUT≤5.0V

0.18

V