Copyright

© ANPEC Electronics Corp.

Rev. A.6 - Mar., 2011

www.anpec.com.tw

8

APL5603

PIN NAME

FUNCTION

VIN

Input Supply Pin. Supply voltage can range from 2.9V to 6V. Bypass with a 1µF capacitor to GND.

VOUT

Regulator Output. Sources up to 600mA. A small capacitor (2.2

µF, typical) is needed from this pin to

ground to assure stability.

EN

Shutdown Control Input. Driving the EN high turns on the regulator. Driving the EN pin low puts the

regulator into shutdown mode. The EN pin is pulled low by an internal resistor.

GND

Ground.

Block Diagram

Pin Description

Typical Application Circuit

VIN

EN

GND

VOUT

APL5603

C2

2.2

µF

C1

1

µF

V

IN

V

OUT

V

EN

Enable

Shutdown

UVLO and

Soft-Start

Thermal

Shutdown

VIN

GND

Current-Limit

V

REF

=0.8V

Short-Circuit

Current-Limit

VOUT

EN