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APW7438B - 7A Constant On Time Synchronous Buck Regulator

This page provides the datasheet information for the APW7438B, a member of the APW7438A 7A Constant On Time Synchronous Buck Regulator family.

Description

The APW7438A/B is a digitally controlled step-down regulator IC with an integrated 20mΩ high-side P-channel MOSFET and an 8mΩ low-side N-channel MOSFET.

Features

  • Pseudo frequency COT control.
  • Extremely fast line/load transient response.
  • I2C for output adjustment (3.4 Mbps).
  • 1.2 MHz switching frequency I2C Interface.
  • Extremely low-RDSON.

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Datasheet preview – APW7438B

Datasheet Details

Part number APW7438B
Manufacturer ANPEC
File Size 2.35 MB
Description 7A Constant On Time Synchronous Buck Regulator
Datasheet download datasheet APW7438B Datasheet
Additional preview pages of the APW7438B datasheet.

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Full PDF Text Transcription

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APW7438A/B 7A Constant On Time Synchronous Buck Regulator with I2C Production Features  Pseudo frequency COT control  Extremely fast line/load transient response  I2C for output adjustment (3.4 Mbps)  1.2 MHz switching frequency I2C Interface  Extremely low-RDSON MOSFETS  Input voltage rail 2.7V to 6V  Up to 7A output current  Power save mode for light-load efficiency  UVLO, OVP, and OCP  -40°C to 85°C ambient temperature  Available in QFN 2mm x 3mm 14 package  RoHS compliant Simplified Application Circuit VIN SW Enable AVIN VOUT APW7438 PGOOD SCL SDA EN PGND AGND General Description The APW7438A/B is a digitally controlled step-down regulator IC with an integrated 20mΩ high-side P-channel MOSFET and an 8mΩ low-side N-channel MOSFET.
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