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A4490 - Triple Output Step-Down Switching Regulator

General 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.

Key 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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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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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.