描述 Description

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 PackageAPPLICATIONS
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

特性 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