General Description

The MIC4600 is a 28V half-bridge MOSFET driver targeted for cost-sensitive applications that require high performance such as set-top boxes, gateways, routers, computing peripherals, telecom, and networking equipment.

The MIC4600 operates over a supply range of 4.5V to 28V. It has an internal linear regulator that provides a regulated 5V to power the MOSFET gate drive and operates up to 1.5 MHz switching frequency.

The MIC4600 uses an adjustable dead time circuit to prevent shoot-through in the external high and low-side MOSFETs.

The MIC4600 is available in a small 3 mm x 3 mm VQFN package with a junction temperature range of –40°C to +125°C.

Features

•Adjustable Dead Time Circuitry

•Anti-Shoot-Through Protection

•Internal LDO for Single Supply Operation

•Input Voltage Range: 4.5V to 28V

•Fast Propagation Delay: 20 ns

•Up to 1.5 MHz Operation

•Low Voltage Logic Level Inputs for μC or FPGA Driven Power Solutions

•Independent Inputs for Low and High-Side Drivers

•2Ω Gate Drive Capable of Driving 3000 pF Load with 15 ns Rise and Fall Times

•Low 450 μA Typical Quiescent Current

•3 mm x 3 mm VQFN Package

•–40°C to +125°C Junction Temperature Range

Applications

•Distributed Power Systems

•Communications/Networking Infrastructure

•Set-Top Boxes, Gateways, and Routers

•Printers and Scanners

•μP and FPGA Controlled DC-DC Regulators