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XRP7657 Datasheet 25V Non Synchronous PWM Step Down Regulator

Manufacturer: Exar (now MaxLinear)

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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.

Overview

February 2011 XRP7657 2A, 25V Non Synchronous PWM Step Down Regulator Rev.

2.0.

Key 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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