L1803L-SH2-R datasheet(5/6 Pages) UTC

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L1803

Preliminary

LINEAR INTEGRATED CIRCUIT

UNISONICTECHNOLOGIESCO.,LTD

5 of 6

www.unisonic.com.tw

QW-R102-058.d



ELECTRICAL CHARACTERISTICS (Cont.)

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNIT

1KHz, IOUT=1A, VIN=1.8V,

VOUT=1.5V

Power-Supply Rejection (VIN~VOUT)

PSRR

300KHz, IOUT=1A, VIN=1.8V,

VOUT=1.5V

1KHz, IOUT=1A, VIN=1.8V,

VOUT=1.5V

Power-Supply Rejection

(VVCC~VOUT)

300KHz, IOUT=1A, VIN=1.8V,

VOUT=1.5V

Startup Time

TST

RLOAD for IOUT=1.0A,

CSS =OPEN

100

µS

Soft-Start Charging Current

ISS

VSS=0.4V

440

Enable Input High Level

VEN, HI

1.1

5.5

Enable Input Low Level

VEN, LO

0.4

Enable Pin Hysteresis

VEN, HYS

Enable Pin Current

IEN

VEN=5V

0.1

µA

PG Trip Threshold

VPG, TH

VOUT Decreasing

%VOUT

PG Trip Hysteresis

VPG, HYS

%VOUT

PG Output Low Voltage

VPG, LO

IPG=1mA (Sinking), VOUT<VPG,

0.3

PG Leakage Current

IPG, LKG

VPG=5.25V, VOUT>VPG, TH

0.1

µA

Shutdown, Temperature

Increasing

+150

°C

Thermal Shutdown Temperature

TSD

Reset, Temperature Decreasing

+130

°C

Notes: 1. VVCC should be higher or equal to VIN in this chip.

2. Tested at 0.8V; resistor tolerance is not taken into account.

3. Dropout is defined as the voltage from VIN to VOUT when VOUT is 3% below nominal.

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