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A4492 Datasheet Triple Output Step-Down Switching Regulator

Manufacturer: Allegro MicroSystems

General Description

Designed to provide the power supply requirements for a wide range of applications, the A4492 provides three high current, high performance, switching regulator outputs with independent soft start.

High frequency switching allows selection of inexpensive inductors and small ceramic output capacitors.

The turn-on cycles of the regulators are interleaved to minimize stresses on the input capacitors and to reduce EMI.

Overview

A4492 Triple Output Step-Down Switching Regulator.

Key Features

  • Three buck converters.
  • 4.5 to 34 V input voltage range.
  • 550 kHz fixed frequency.
  • Multiphase switching.
  • Independent control of each converter.
  • Power-on-reset flag.
  • Internal compensation.
  • 4 × 4 mm QFN Package, small PCB footprint.
  • RoHS compliant Package: 20-contact QFN (suffix ES) Approximate footprint.