ACE7273C

500KHz, 16V, 3A Synchronous Step-Down Converter

VER 1.2

1

Description

The ACE7273C is a fully integrated, high-efficiency 3A synchronous rectified step-down converter. The

ACE7273C operates at high efficiency over a wide output current load range.

This device offers two operation modes, PWM control and PFM Mode switching control, which allows a

high efficiency over the wider range of the load.

The ACE7273C requires a minimum number of readily available standard external components and is

available in SOT23-6 package.

Features

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High Efficiency: Up to 96%

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500KHz Frequency Operation

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Up to 3A Output Current

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No Schottky Diode Required

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4.5V to 16V Input Voltage Range

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0.8V Reference

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Slope Compensated Current Mode Control for Excellent Line and Load Transient Response

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Integrated internal compensation

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Stable with Low ESR Ceramic Output Capacitors

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Over Current Protection with Hiccup-Mode

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Over temperature protection

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Inrush Current Limit and Soft Start

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Available in SOT23-6

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-30°C to +85°C Temperature Range

Application

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Distributed Power Systems

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Digital Set Top Boxes

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Flat Panel Television and Monitors

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Wireless and DSL Modems

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Notebook Computer