A4491 Datasheet - Allegro

A4491 Triple Output Step-Down Switching Regulator

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. High frequency switching allows sele.

A4491 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 compe

A4491-Allegro.pdf