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XRP7657 - 25V Non Synchronous PWM Step Down Regulator

Description

The XRP7657 is a non synchronous voltage mode PWM step down (buck) regulator capable of a constant output current up to 2Amps.

A wide 4.75V to 25V input voltage range allows for single supply operations from industry standard 5V, 12V and 24V power rails.

Features

  • 2A Constant Output Current.
  • 4.75V to 25V Wide Input Voltage.
  • PWM Voltage Mode Control.
  • 420kHz Constant Operations.
  • Up to 94% Efficiency.
  • Adjustable Output Voltage.
  • 0.8V to 21V Range.
  • 2% Accuracy.
  • Soft-Start and Enable Function.
  • Built-in Thermal, Over Current and Output Short Circuit Protection.
  • RoHS Compliant, “Green”/Halogen Free 8-Pin SOIC Package Fig. 1: XRP7657.

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Datasheet preview – XRP7657

Datasheet Details

Part number XRP7657
Manufacturer Exar Corporation
File Size 316.39 KB
Description 25V Non Synchronous PWM Step Down Regulator
Datasheet download datasheet XRP7657 Datasheet
Additional preview pages of the XRP7657 datasheet.

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Full PDF Text Transcription

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February 2011 XRP7657 2A, 25V Non Synchronous PWM Step Down Regulator Rev. 2.0.0 GENERAL DESCRIPTION The XRP7657 is a non synchronous voltage mode PWM step down (buck) regulator capable of a constant output current up to 2Amps. A wide 4.75V to 25V input voltage range allows for single supply operations from industry standard 5V, 12V and 24V power rails. With a 420kHz constant operating frequency and integrated high side switch, the XRP7657 reduces the overall component count and solution footprint. In addition to a 2% output setpoint accuracy, this device provides high efficiency, low ripple and excellent line and load regulation. An enable function and soft start feature allow for controlled power up sequencing implementation.
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