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XRP6124 Datasheet Non-Synchronous PFET Step-Down Controller

Manufacturer: Exar (now MaxLinear)

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General Description

The XRP6124 is a non synchronous step down (buck) controller for up to 5Amps point of loads.

A wide 3V to 30V input voltage range allows for single supply operations from industry standard 3.3V, 5V, 12V and 24V power rails.

With a proprietary Constant On-Time (COT) control scheme, the XRP6124 provides extremely fast line and load transient response while the operating frequency remains nearly constant.

Overview

January 2011 XRP6124 Non-Synchronous PFET Step-Down Controller Rev.

1.1.

Key Features

  • 5A Point-of-Load Capable.
  • Down to 1.2V Output Voltage Conversion.
  • Wide Input Voltage Range.
  • 3V to 18V: XRP6124.
  • 4.5V to 30V: XRP6124HV.
  • Constant On-Time Operations.
  • Constant Frequency Operations.
  • No External Compensation.
  • Supports Ceramic Output Capacitors.
  • Built-in 2ms Soft Start.
  • Short Circuit Protection.

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