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A4405 Datasheet

Constant On-time Buck Regulator

Manufacturer: Allegro Micro Systems

Datasheet Details

Part number A4405
Manufacturer Allegro Micro Systems
File Size 2.57 MB
Description Constant On-Time Buck Regulator
Datasheet A4405-AllegroMicroSystems.pdf

A4405 Overview

The A4405 is an automotive power management IC that uses a high frequency constant on-time 5.45 V pre-regulator to supply two internal 5 V linear.

A4405 Key Features

  • AEC-Q100 Grade 0 qualified
  • Internal buck pre-regulator followed by LDO outputs
  • 5.5 to 36 V VIN operating range (50 V maximum)
  • 2.2 MHz constant on-time buck regulator
  • Valley current sensing achieves shortest buck on-times

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A4405 Distributor