Universal DC/DC Converter

AP34063

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.A5 Feb.10, 2004

1/10

Features

•

Operation from 3.0V to 40V Input

•

Low Standby Current

•

Current Limiting

•

Output Switch Current to 1.6A

•

Output Voltage Adjustable

•

Frequency Operation to 100 kHz

•

Precision 2% Reference

General Description

The AP34063 Series is a monolithic control circuit

containing the primary functions required for

DC-to-DC converters. These devices consist of an

internal

temperature

compensated

reference,

comparator, controlled duty cycle oscillator with an

active current limit circuit, driver and high current

output switch. This series is specifically designed

for incorporating in Step-Down and Step-Up and

Voltage-Inverting applications with a minimum

number of external components.

Pin Connections

1

2

3

4

8

7

6

5

Comparator

Inverting

Input

Driver

Collector

Sense

Switch

Collector

Switch

Emitter

Timing

Capacitor

Gnd

(Top View)

Ordering Information

AP34063 X X X X

Package

Packing

Temp. grade

S8 : SOP-8L

N8 : PDIP-8L

Blank : Tube

A

: Taping

Lead Free

Blank : Normal

L : Lead Free Package