Description
The SC417/SC427 is a stand-alone synchronous buck power supply. It features integrated power MOSFETs, a bootstrap switch, and a programmable LDO in a space saving MLPQ-5x5mm 32-pin package. The device is highly efficient and uses minimal PCB area. It uses pseudo-fixed frequency adaptive on-time operation to provide fast transient response.

FEATUREs
Input voltage — 3V to 28V
Internal power MOSFETs — 10A
Integrated bootstrap switch
Smart power-save protection
Configurable 150mA LDO with bypass capability
TC compensated R
DS(ON) sensed current limit
Pseudo-fixed frequency adaptive on-time control
Designed for use with ceramic capacitors
Programmable VIN UVLO threshold
Independent enable for switcher and LDO
Selectable ultra-sonic power-save (SC417)
Selectable power-save (SC427)
Internal soft-start and soft-shutdown at output
Internal reference — 1% tolerance
Over-voltage/under-voltage fault protection
Power good output
Lead-free 5x5mm, 32 Pin MLPQ package
Fully WEEE and RoHS compliant

APPLICATIONs
Notebook, desktop, tablet, and server computers
Networking and telecommunication equipment
Printers, DSL, and STB applications
Embedded applications
Power supply modules
Point of load power supplies