ISL6571 Datasheet (Intersil Corporation) - Complementary MOSFET Driver and Synchronous Half-Bridge Switch

ISL6571, Complementary MOSFET Driver and Synchronous Half-Bridge Switch

VCC (Pin 54) Provide a 12V bias supply for the driver IC to this pin.

The voltage at this pin is monitored for Power-On Reset (POR) purposes.

provides the bias for the upper MOSFET drive and the gate charge for the upper MOSFET.

LGATE (Pin 53) This pin is the output of the lower MOSFET drive.

Con

® ISL6571 Data Sheet February 2003 FN9082.2 Complementary MOSFET Driver and Synchronous Half-Bridge Switch The Intersil ISL6571 provides a new approach for implementing a synchronous rectified buck switching regulator.

The ISL6571 replaces two power MOSFETs, a Schottky diode, two gate drivers and synchronous control circuitry.

Its main applications address high-density power conversion circuits including multiphase-topology computer microprocessor core power regulators, ASIC and memory array r

ISL6571 Features

* Improved Performance over Conventional Synchronous Buck Converter using Discrete Components

* Optimal Deadtime Provided by Adaptive Shoot-Through

* Switching Frequency up to 1MHz - High-Bandwidth, Fast Transient Response - Small, Low Profile Converters

* Reduced Con