1.5A Low Dropout Positive Fixed-Mode Regulator

AP033

This datasheet contains new product information. Anachip Corp. reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of

this product. No rights under any patent accompany the sale of the product.

Rev.1.0 Aug.27, 2004

1/5

Features

•

3-Terminal and Fixed 3.3V

•

1.4V Maximum Dropout at Full Load Current.

•

Fast Transient Response.

•

Built-in Thermal Shutdown.

•

Output Current Limiting.

Applications

•

PC peripheral

•

Communication

General Description

AP033 is a low dropout positive fixed-mode

regulator with minimum of 1.5A output current

capability. The product is specifically designed to

provide well-regulated supply for low voltage IC

applications such as high-speed bus termination

and low current 3.3V logic supply. AP033 is

guaranteed to have <1.4V dropout at full load

current making it ideal to provide well regulated

outputs of 3.3V with 4.7V to 12V input supply by

different output voltage.

Ordering Information

AP 033 X X X

LDO Regulator

Package

Packing

033 Vout = 3.3V

D : TO252-3L

Blank : Tube

A : Taping

Lead Free

Blank : Normal

L : Lead Free Package

Pin Assignments

3 PIN TO252

3

2

1

GND

Tab is GND

Pin Descriptions

Name Pin #

Function

1

The input pin of regulator.

Typically a large storage

capacitor is connected from this

pin to ground to insure that the

input voltage does not sag below

the minimum dropout voltage

during the load transient

response. This pin must always

order for the device to regulate

properly.

GND

2

Ground

3

The output of the regulator. A

minimum of 10µF capacitor

must be connected from this pin

to ground to insure stability.

Ground