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XRP6668 - 1A/1A Dual Channel 1.5MHz Sync. Step Down Converter

Description

The XRP6668 is a dual channel synchronous current mode PWM step down (buck) converter capable of delivering up to 1 Amp of current per channel and optimized for portable battery-operated applications.

Features

  • Dual Channel Step Down Converter.
  • Guaranteed 1A/1A Output Current.
  • Input Voltage: 2.5V to 5.5V.
  • 1.5MHz PWM Current Mode Control.
  • PFM Mode Operations at Light Load.
  • 100% Duty Cycle LDO Mode Operations.
  • Adjustable Output Voltage Range.
  • As Low as 0.6V with ±3% Accuracy.
  • Internal Compensation Network.
  • 30µA Quiescent Current.
  • Over Temperature & UVLO Protections.
  • RoHS Compliant “Green”/Halogen.

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Datasheet preview – XRP6668

Datasheet Details

Part number XRP6668
Manufacturer Exar Corporation
File Size 606.84 KB
Description 1A/1A Dual Channel 1.5MHz Sync. Step Down Converter
Datasheet download datasheet XRP6668 Datasheet
Additional preview pages of the XRP6668 datasheet.

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Full PDF Text Transcription

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January 2011 XRP6668 1A/1A Dual Channel 1.5MHz Sync. Step Down Converter Rev. 1.2.0 GENERAL DESCRIPTION The XRP6668 is a dual channel synchronous current mode PWM step down (buck) converter capable of delivering up to 1 Amp of current per channel and optimized for portable battery-operated applications. Based on a current mode 1.5MHz constant frequency PWM control scheme, the XRP6668 reduces the overall component count and solution footprint as well as provides a low output voltage ripple and excellent line and load regulation. It also implements a PFM mode to improve light load efficiency as well as a 100% duty cycle LDO mode. Output voltage is adjustable to as low as 0.
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