SC2602A Datasheet PDF | Semtech Corporation

Semtech Corporation SC2602A

the SC2602A at 500kHz, providing a choice for optimum compromise between efficiency, external component size, and cost. The power good of the first SC2602 connected to the enable of the second SC2602 makes this possible. 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.

Part No.	SC2602A
Datasheet	SC2602A Download
Manufacturer	Semtech Corporation
Description	Synchronous Voltage Mode Controller
Buy	Stock & Price

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

APPLICATIONS

Microprocessor core supply Low cost synchronous applications Voltage Regulator Modules (VRM) DDR termination supplies Networking power supplies Sequenced power supplies Typical Application Circuit Typical Distributed Power Supply +5V + R1 1k R2 C1 0.1 R4 10 C2 0.1 1 U1 SC2602 VCC GND 14 C3 0.1 4.99K 820pF C5 10.0 C6 680/6.3V C7 680/6.3V C8 680/6.3V Vin _ 5V PWRGD 2 0.1 OVP R3 1k PWRGD SS/SHDN 13 SHDN 3 OVP COMP 12 R8 124* R7 127 4 OCSET SENSE 11 5 D1 MBR0520 PHASE BSTH 10 C4 1.0 +12V Q1 STP40NE R5 3.9 R6 2.2 Q2 STP40NE L1 2uH 6 DRVH BSTL 9 + C9 180/4V C10 180/4V C11 180/4V C12 180/4V C13 180/4V 7 PGND DRVL 8 Vout=2.5V * _ Figure 1. NOTE: *) Vout = 1.265 x (1+R8/R7) Revision: October 13, 2004 1 SC2602/SC2602A POWER MANAGEMENT

ABSOLUTE MAXIMUM RATINGS

Exceeding the specifications below may result in permanent damage to the device, or device malfunction.