A4490 Datasheet - Allegro

A4490 Triple Output Step-Down Switching Regulator

Designed to provide the power supply requirements of printers, office automation, industrial, and portable equipment, the A4490 provides three high current, high performance, switching regulator outputs with independent soft start. High frequency switching allows selection of inexpensive inductors a.

A4490 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 Package: 20-contact QFN (suffix ES) Approximate size Descripti

A4490-Allegro.pdf