SC1102(2000) Datasheet - Semtech Corporation

SYNCHRONOUS DC/DC CONTROLLER FOR DISTRIBUTED POWER SUPPLY APPLICATIONS

DESCRIPTION
The SC1102 is a low-cost, full featured, synchronous voltage-mode controller designed for use in single ended power supply applications where efficiency is of primary concern. Synchronous operation allows for the elimination of heat sinks in many applications. The SC1102 is ideal for implementing DC/DC converters needed to power advanced microprocessors in low cost systems, or in distributed power applications where efficiency is important. Internal level-shift, high-side drive circuitry, and preset shoot-thru control, allows the use of inexpensive N-channel power switches.

FEATURES
• 1.265V Reference available
• Synchronous operation
• Over current fault monitor
• On-chip power good and OVP functions
• Small size with minimum external components
• Soft Start
• RDS(ON) Current sensing

APPLICATIONS
• Microprocessor core supply
• Low cost synchronous applications
• Voltage Regulator Modules (VRM)