LR18120

CMOS IC

UNISONICTECHNOLOGIESCO.,LTD

5 of 9

www.unisonic.com.tw

QW-R502-305.O



ELECTRICAL CHARACTERISTICS

VPP=5V, VIN =3.3V, VEN=VPP, IOUT =10mA, CIN=10µF, COUT =10µF, TA=TJ=25°C, unless otherwise specified.

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX UNIT

VIN

Input Voltage Range

VIN

1.4

5.5

V

Quiescent Current (Ground Current)

IQ

VOUT=2.5V

1

2

mA

VPP

VPP Voltage Range

VPP

4.5

5.5

V

VPP Current

IPPH

VOUT =2.5V

0.23

0.5

mA

IPPL

VEN=0V

36

60

μA

VOUT

Output Voltage (Internal Fixed Voltage)

VOUT

VIN= VOUT +0.5V, VOUT =2.5V

2.45

2.5

2.55

V

Line Regulation

OUT

IN

OUT

V

×

∆V

∆V

VIN=( VOUT +0.5V) ~ 5V

0.2

1

%

Load Regulation

∆VOUT

10mA≤IOUT≤2A

0.2

1

%

Dropout Voltage

VD

IOUT=2A

300

420

mV

Short Circuit Current

1.4

A

VOUT Pull Low Resistance

VEN=0V

90

Ω

ADJ

Reference Voltage

VREF

VADJ= VOUT

0.788

0.8

0.812

V

Adjust Pin Current

IADJ

20

100

nA

Adjust Pin Threshold

0.15

0.2

0.25

V

VEN

VEN Pin Voltage High

VH(EN)

1.6

V

VEN Pin Voltage Low

VL(EN)

0.4

V

VEN Pin Bias Current

IBIAS(EN)

VEN=0V

12

40

μA

POK

VOUT Power OK Voltage

VTHPOK

92

%

Hysteresis

VHYPOK

7

%

OVER TEMPERATURE PROTECTION

Over Temperature

TOTP

150

°C

Over Temperature Hysteresis

TOTHY

30

°C

Note: Low duty pulse techniques are used during test to maintain junction temperature as close to ambient as possible.