6439CBZ Datasheet, Intersil Corporation

a 15MHz gain-bandwidth product and 6V/μs slew rate which enables high converter bandwidth for fast transient performance. The resulting PWM duty cycles range from 0% to 1.

The ISL6439 makes easy work out of implementing a complete control and protection scheme for a DC/DC step-down converter.

14 LEAD SOIC GND 1 LGATE 2 CPVOUT 3 CT1 4 CT2 5 OCSET 6 FB 7 14 UGATE 13 BOOT 12 PHASE 11 VCC 10 CPGND 9 ENABLE 8 COMP PHASE Connect this pin to the upper MOSFET’s source. This pin is used to monitor the voltage drop across the upper MOSFET for over.