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XRP6658 - 1A 1.5MHz PFM/PWM Synchronous Step-Down Converter

General Description

The XRP6658 is a synchronous current mode PWM step down (buck) converter capable of delivering up to 1 Amp of current and optimized for portable battery-operated applications.

Key Features

  • Guaranteed 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.
  • Achieves 97% Efficiency.
  • Adjustable Output Voltage Range.
  • As Low as 0.6V with ±3% Accuracy.
  • Internal Compensation Network.
  • 15µA Quiescent Current.
  • Over Temperature & UVLO Protections.
  • RoHS Compliant “Green”/Halogen Free 5-Pin S.

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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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XRP6658 1A 1.5MHz PFM/PWM Synchronous Step-Down Converter January 2014 GENERAL DESCRIPTION The XRP6658 is a synchronous current mode PWM step down (buck) converter capable of delivering up to 1 Amp of current and optimized for portable battery-operated applications. Based on a current mode 1.5MHz constant frequency PWM control scheme, the XRP6658 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 0.6V with a better than 3% accuracy while a low quiescent current supports the most stringent battery operating conditions.