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A4490 - Triple Output Step-Down Switching Regulator

Description

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.

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.

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Datasheet preview – A4490

Datasheet Details

Part number A4490
Manufacturer Allegro
File Size 390.28 KB
Description Triple Output Step-Down Switching Regulator
Datasheet download datasheet A4490 Datasheet
Additional preview pages of the A4490 datasheet.

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Full PDF Text Transcription

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A4490 Triple Output Step-Down Switching Regulator Features and Benefits ▪ 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 Description 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 and small ceramic output capacitors.
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