GENERAL DESCRIPTION

The ADP3089 is a high frequency, non-synchronous PWM step-down DC-DC regulator with an integrated 1.5 A power switch in a space-saving chip scale package. It provides high efficiency, excellent dynamic response, and is very simple to use.

FEATURES

1 MHz PWM Frequency

Ultrasmall 8-lead 3×3 Sq. mm Chip Scale Package

Automatic PWM to Power Saving Mode at Light Load

Fully Integrated 1.5 A Power Switch

3 Output Regulation Accuracy over Temperature,

Line, and Load

100 Duty Cycle Operation

Simple Compensation

Output Voltage: 1.25 V to 10 V

Small Inductor and MLC Capacitors

Low Quiescent Current while Pulse Skipping

Thermal Shutdown

Fully Integrated Soft Start

Cycle-by-cycle Current Limit

APPLICATONS

PDAs and Palmtop Computers

Notebook Computers

PCMCIA Cards

Bus Products

Portable Instruments

Industrial Systems