ATC4060设计参考文档，原厂英文版本！
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
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.
