Copyright

© ANPEC Electronics Corp.

Rev. A.6 - Oct., 2009

APL5156

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.

High Input Voltage, Low Quiescent Current, 150mA LDO Regulator

Features

General Description

Applications

•

USB Power Supply

•

Keep-Alive Supply in Notebook and Portable

Computers

•

Logic Supply for High-Voltage Batteries

•

Battery Powered Systems

Simplified Application Circuit

•

Wide Operating Voltage : 6.5V~25V

•

Ultra Low Ground Current : 70

µA

•

High Output Accuracy :

•

Excellent Load/Line Transient

•

Low Dropout Voltage : 1900mv @ 150mA

•

Fixed Output Voltages for 5V/3.3V or Adjustable

Voltage

•

Built-In Reverse Battery Protection

•

Built-In Reverse Leakage Protection

•

Built-In Current-Limit Protection

•

Built-In Over-Temperature Protection

•

Zero Shutdown Current

•

Internal Soft-Start Function 0.5ms~1.5ms (max)

Over Temperature

•

POR Scheme to Prevent V

•

Stable with Aluminum, Tantalum, or Ceramic

Capacitors

•

SOT-23-5, SOT-89, and SOP-8P Packages

•

Lead Free and Green Devices Available

(RoHS Compliant)

Pin Configuration

The APL5156 is a low ground current linear regulator,

which operates with input voltage from 6.5V to 25V and

delivers output current up to 150mA. Typical dropout volt-

age is only 1.9V at 150mA loading. This combination of

the high voltage and the low ground current makes the

APL5156 ideal for USB and portable devices, using 2-

cell or 3-cell Li-Ion battery inputs.

The APL5156 is stable with aluminum, tantalum, and

ceramic capacitors. It requires a 2.2

µF or greater capaci-

tor for stability.

The APL5156 has many protection functions, including

over-temperature, current-limit, reverse battery, and

reverse leakage protections which prevent the device from

thermal over-load, current over-load, reverse connection

of the battery and output current reversing to the VIN.

The APL5156 regulator is available in miniature SOT-23-

5, SOT-89, and SOP-8P packages.

SOT-89

TAB: VIN

VIN 2

VOUT 3

GND 1

GND 2

5 VOUT

EN 3

4 NC/ADJ

VIN 1

SOT-23-5

NC 2

7 GND

NC 3

NC/ADJ 4

6 NC

5 EN

8 VIN

VOUT 1

Thermal Pad (connected to GND

plane for better dissipation)

SOP-8P

VIN

EN

GND

VOUT

ADJ

APL5156

C

IN

1µF

C

OUT

2.2µF

Adjustable Output Voltage (SOT-23-5/SOP-8P)