GENERAL DESCRIPTION

The ACT4065 is a current-mode step-down DC-DC converter that generates up to 2A output current at 200kHz switching frequency. The device utilizes Active-Semi’s proprietary ISOBCD30 process for operation with input voltage up to 28V.

FEATURES

2A Output Current

Up to 95% Efficiency

Up to 28V Input Range

8µA Shutdown Supply Current

200kHz Switching Frequency

Adjustable Output Voltage

Cycle-by-Cycle Current Limit Protection

Thermal Shutdown Protection

Frequency Foldback at Short Circuit

Stability with Wide Range of Capacitors, Including Low ESR Ceramic Capacitors

SOP-8 Package

APPLICATIONS

TFT LCD Monitors

Portable DVDs

Car-Powered or Battery-Powered Equipments

Set-Top Boxes

Telecom Power Supplies

DSL and Cable Modems and Routers

Termination Supplies