GENERAL DESCRIPTION

The ACT4075 is a current-mode step-down DC/DC converter that generates up to 2.5A output current at 410kHz switching frequency. The device utilizes Active-Semi’s proprietary ISOBCD30 process for operation with input voltage up to 32V.

FEATURES

• 2.5A Output Current

• Up to 95 Efficiency

• 4.5V to 32V Input Range

• 6µA Shutdown Supply Current

• 410kHz Switching Frequency

• Adjustable Output Voltage

• Cycle-by-Cycle Current Limit Protection

• Thermal Shutdown Protection

• Internal Soft Start Function

• Frequency Fold Back at Short Circuit

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

• SOP-8/EP (Exposed Pad) Package

APPLICATIONS

• TFT LCD Monitors or Televisions and HDTV

• Portable DVD Players

• Car-Powered or Battery-Powered Equipment

• Set-Top Boxes

• Telecom Power Supplies

• DSL and Cable Modems and Routers