GENERAL DESCRIPTION
The ACT4060 is a current-mode step-down DC/DC converter that generates up to 2A of output current at 420kHz switching frequency. The device utilizes Active-Semi’s proprietary ISOBCD20 process for operation with input voltages up to 20V.
Consuming only 8μA in shutdown mode, the ACT4060 is highly efficient with peak operating efficiency at 95%. Protection features include cycle-bycycle current limit, thermal shutdown, and frequency foldback at short circuit.
The ACT4060 is available in a SOP-8 package and requires very few external devices for operation.

FEATURES
*2A Output Current
*Up to 95% Efficiency
*4.75V to 20V Input Range
*8μA Shutdown Supply Current
*420kHz 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

ACT4060SH, ACT4060SH-T