Copyright

© ANPEC Electronics Corp.

Rev. A.5 - Oct., 2012

APL5611/A

www.anpec.com.tw

1

ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and

advise customers to obtain the latest version of relevant information to verify before placing orders.

Low Dropout Linear Regulator Controller

Features

General Description

Applications

•

Notebook PC Applications

•

Motherboard Applications

Simplified Application Circuit

•

Wide Supply Voltage Range from 4.5 to 13.5V

•

High Output Accuracy Over Operating Temperature

and Loading Ranges

•

Fast Transient Response

•

Power-On-Reset Monitoring on VCC

•

Programmable Soft-Start

•

Low Shutdown Current

•

Enable Control Function

•

Under-Voltage Protection

•

Two Versions of IC Available:

- APL5611: UVP Activated after V

- APL5611A: UVP Activated after V

•

SOT-23-6 Package

•

Lead Free and Green Devices Available

(RoHS Compliant)

Pin Configuration

-

The APL5611/A is a low dropout linear regulator controller.

The APL5611/A could drive an external N-Channel

MOSFET and provide an adjustable output by using an

external resistive divider.

The APL5611/A integrates various functions. For example,

a Power-On-Reset (POR) circuit monitors VCC supply

voltage to prevent wrong operations; the function of Un-

der-Voltage Protection (UVP) protects the device from short

circuit condition. The soft-start of output voltage is adjust-

able by the external capacitor on SS pin. Moreover, the

APL5611/A can be enabled by other power system;

namely, holding the EN above 1.6V enables output and

pulling the EN under 0.4 disables output.

The APL5611/A is available in a SOT-23-6 package.

V

CC

V

IN

SS

DRV

GND

APL5611/A

EN

ON

OFF

FB

V

OUT

VCC

EN

APL5611/A

SOT-23-6

(Top View)

4 SS

6 VCC

GND 2

5 DRV

FB 3

EN 1