AP3003 datasheet(1/16 Pages) BCDSEMI

部件名	AP3003

功能描述	150kHz 3A BUCK DC-DC CONVERTER

PDF	16 Pages

Scroll/Zoom	100%

制造商	BCDSEMI [BCD Semiconductor Manufacturing Limited]

网页	http://www.bcdsemi.com

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1 / 16 page

150kHz 3A BUCK DC-DC CONVERTER

AP3003

Data Sheet

1

Feb. 2007 Rev. 1. 1

BCD Semiconductor Manufacturing Limited

General Description

The AP3003 series of regulators are fixed frequency

PWM buck (step-down) DC/DC converter, capable of

driving a 3A load with excellent line and load regula-

tion. These regulators include internal frequency com-

pensation and a fixed frequency oscillator so that they

are easy to use. A system adopting AP3003 requires a

minimum number of external components to work.

A standard series of inductors, optimized for use with

the AP3003 series, are available from several manu-

facturers. This feature greatly simplifies the design of

switch-mode power supplies.

These ICs are available in TO-220-5 and TO-263-5

packages.

Features

·

3.3V, 5V, 12V Fixed (

±4% Tolerance) and Adjust-

able (

±3% Tolerance) Output Versions

·

Guaranteed 3A Output Load Current

·

150kHz Fixed Frequency Internal Oscillator

·

Input Voltage Range up to 32V

·

Requires only 4 external components

·

High Efficiency up to 90%

·

Excellent Line and Load Regulation

·

TTL Shutdown Capability

·

Low Power Standby Mode, IQ Typically 80µA

·

Built-in Current Limit Protection and Thermal

Shutdown Circuit

Applications

·

LCD Monitor and LCD TV

·

On-Card DC-DC Converter

·

DVD Recorder

·

PDP

Figure 1. Package Types of AP3003

TO-220-5

TO-263-5

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