DESCRIPTION

The A7222 is a fully integrated, high-efficiency 2A synchronous rectified step-down converter. The A7222 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 A7222 is available in SOT-26 package.

FEATURES

 High Efficiency: Up to 96

 500 k Hz Frequency Operation

 2A Output Current

 No Schottky Diode Required

 4.2V to 18V 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 2 6 p ackage

APPLICATION

 Distributed Power Systems

 Digital Set Top Boxes

 Flat Panel Television and Monitors

 Wireless and DSL Modems

 Notebook Computer