DESCRIPTION

The A7231A is a fully integrated, high-efficiency 3A synchronous rectified step-down converter. The A7231A 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 A7231A is available in SOT-26 package.

FEATURES

? High Efficiency: Up to 96

? 500kHz Frequency Operation

? 3A Output Current

? No Schottky Diode Required

? 4.2V to 16V Input Voltage Range

? 0.8V Reference

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

? Integrated internal compensation

? Stable with Low ESR Ceramic Output Capacitors

? Over Current Protection with Hiccup-Mode

? Thermal Shutdown

? Inrush Current Limit and Soft Start

? -40°C to +85°C Temperature Range

? Available in SOT-26 Package

APPLICATION

? Distributed Power Systems

? Digital Set Top Boxes

? Flat Panel Television and Monitors

? Wireless and DSL Modems

? Notebook Computer