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XRP7657 - 25V Non Synchronous PWM Step Down Regulator

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.

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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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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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.