Low I

Copyright

© ANPEC Electronics Corp.

Rev. B.4 - May., 2005

APL5151/2/3/4

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.

Features

General Description

The APL5151/2/3/4 is micropower, low noise, low drop-

out linear regulator. Operate from 3V to 6V input volt-

age and deliver up to 150mA. Typical output noise is

just 60uV

bypass capacitor in BP pin and typical dropout voltage

is only 220mV at 150mA loading. Designed for use in

battery-powered system, the low 50uA quiescent cur-

rent makes it an ideal choice. Design with an internal

P-channel MOSFET pass transistor, the APL5151/2/

3/4 maintains a low supply current, independent of

the load current and dropout voltage. Other features

include reverse current protection, thermal-shutdown

protection, current limit protection to ensure speci-

fied output current and controlled short-circuit current.

TheAPL5151/2/3/4 regulators come ina miniatureSOT-

23-5 package.

Applications

•

Notebook Computer

•

PDA or Portable Equipments

•

Noise-Sensitive Instrumentation Systems

•

Low Noise : 60uV

•

Low Quiescent Current : 50uA

•

Low Dropout Voltage : 300mV

(VOUT(Nominal)=3.0V Version @150mA)

•

Very low Shutdown Current : < 0.5uA

•

Fixed Output Voltage : 1.3V,1.4V,1.5V,1.6V,

1.7V,1.8V,1.9V, 2.0V,2.1V,2.2V,2.3V,2.4V,

2.5V,2.6V,2.7V, 2.8V, 2.85V,2.9V,3.0V,3.1V,

3.2V,3.3V,3.4V, 3.5V, 5.0V

•

Stable with 1uF Output Capacitor

• Stable with Aluminum , Tantalum or Ceramic

Capacitors

• Reverse Current Protection

• No Protection Diodes Needed

•

Built in Thermal Protection

•

Built in Current Limit Protection

• Controlled Short Circuit Current : 50mA

•

Fast transient Response

•

Short Setting Time

• SOT-23-5 Package

Pin Configuration

GND

BP

1

2

3

5

SHDN

4

APL5151

GND

BP

1

2

3

5

SHDN

4

APL5152

GND

BP

1

2

3

5

SHDN

4

APL5153

GND

BP

1

2

3

5

SHDN

4

APL5154