A4491 - Triple Output Step-Down Switching Regulator

Allegro

A4491 Datasheet Preview — Preview of A4491 PDF

Datasheet Details

Part number	A4491
Manufacturer	Allegro
File Size	1.08 MB
Description	Triple Output Step-Down Switching Regulator
Datasheet	A4491-Allegro.pdf

A4491 Product details

Description

Designed to provide the power supply requirements of printers, office automation, industrial, and portable equipment, the A4491 provides three high current, high performance, switching regulator outputs in a single package, saving space, cost and component count.

Features

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.

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Published: Dec 6, 2023 |