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A4491

Part Number	A4491
Manufacturer	Allegro
Description	Triple Output Step-Down Switching Regulator
Published	Dec 6, 2023
Detailed Description	A4491 Triple Output Step-Down Switching Regulator FEATURES AND BENEFITS ▪ Three buck converters in a single package ▪ 4...
Datasheet	A4491 PDF File

Overview

A4491 Triple Output Step-Down Switching Regulator FEATURES AND BENEFITS ▪ Three buck converters in a single package ▪ 4.
5 to 23 V input voltage range ▪ 550 kHz fixed frequency ▪ Multiphase switching for smaller components and lower EMI ▪ Independent control of each converter for sequencing and shutdown control ▪ Power-on-reset flag with adjustable delay ▪ Internal compensation to minimize components and simply design ▪ 4 × 4 mm QFN Package, small PCB footprint PACKAGE: 20-contact QFN (suffix ES) Approximate footprint DESCRIPTION Designed to provide the power supply requirements of printers, office automation, industrial, and portable equipment, the A4491 provides three high current, high p...

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