LM5032

SNVS344B – MARCH 2005 – REVISED DECEMBER 2014

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7 Detailed Description

7.1 Overview

The LM5032 contains all the features necessary to implement two independently regulated current mode dc/dc

converters, or a single high current converter comprised of two parallel interleaved channels using the Forward

converter topology. The two controllers operate 180° out of phase from a common oscillator, thereby reducing

input ripple current. Each regulator channel contains a complete PWM controller, current sense input, soft-start

lockout, 2 MHz capable oscillator, maximum duty cycle control, and the hiccup mode fault protection circuit.

The gate driver outputs (OUT1, OUT2) are designed to drive N-channel MOSFETs. Their compound

configuration reduces the turn-off-time, thereby reducing switching losses. Additional features include thermal

shutdown, slope compensation, and the oscillator synchronization capability.

10

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