6534CV - ISL6534CV
, page 9) 2 FN9134.1 ISL6534 Block Diagram VCC VREF VCC12 VCC5 POWER ON RESET AND CONTROL VCC5 5.8V 30µA BOOT1 SS1/EN1 VCC5 REFERENCE BIAS CURRENT 3.3V OUTPUT1 DRIVERS 30µA 0.6V 3.3V GATE CONTROL LOGIC DEAD-TIME CONTROL UGATE1 www.DataSheet4U.com SS2/EN2 VCC5 LGATE1 30µA SS3/EN3 3
® ISL6534 Data Sheet December 21, 2004 FN9134.1 Dual PWM with Linear The ISL6534 is a versatile triple regulator that has two independent synchronous-rectified buck controllers with integrated 12V gate drivers (OUT1 and OUT2) and a linear controller (OUT3) to offer precision regulation of up to three voltage rails.
An optional shunt regulator allows 12V only operation, when a 5V supply is not available.
Each controller has independent soft-start and enable functions combined on a single pin.
A
6534CV Features
* Two Synchronous-Rectified Buck Controllers - Voltage Mode control - VIN range up to 12V - VOUT range from 0.6V to 6V - 12V LGATE drivers; up to 12V Boot Strap for UGATE
* Switcher References - 0.6V Reference for OUT1 (0.8% Accurate) - 3.3V Reference Output for OUT2 (0.8% Accurate)
