SC2602

www.DataSheet4U.com Synchronous Voltage Mode Controller for Distributed Power Supply Applications POWER MANAGEMENT Description The SC2602 and SC2602A are low-cost, full featured, synchronous voltage-mode controllers 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 SC2602s are 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. SC2602s features include temperature compensated voltage reference, triangle wave oscillator and current sense comparator circuitry. Power good signaling, shutdown, and over voltage protection are also provided. The SC2602 operates at a fixed 200kHz and the SC2602A at 500kHz, providing a choice for optimum compromise between efficiency, external component size, and cost. Two SC2602s can be used together to sequence power up of telecom systems. The power good of the first SC2602 connected to the enable of the second SC2602 makes this possible. SC2602/SC2602A Features ‹ ‹ ‹ ‹ ‹ ‹ Synchronous operation for high efficiency (95%) RDS(ON) current sensing On-chip power good and OVP functions Small size with minimum external components Soft Start Enable function Applicati...