[ACTIVE-SEMI]

GENERAL DESCRIPTION

The ACT4012 is a current-mode step-down DC-DC converter that generates up to 2A output current at 410kHz  switching frequency. The device utilizes Active-Semi’s proprietary ISOBCD20 process for operation with input voltage up to 20V.

FEATURES

2A Output Current

Up to 92% Efficiency

Up to 20V Input Range

8µA Shutdown Supply Current

410kHz 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-Poweredor Battery-Powered Equipments

Set-Top Boxes

TelecomPowerSupplies

DSL and Cable Modem sand Routers

Termination Supplies