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MPQ2122 - SYNC Buck Regulator

General Description

The MPQ2122 is an internally-compensated, 1MHz fixed-frequency, dual PWM, synchronous, step-down regulator.

Key Features

  • Dual 2A-Output Current.
  • >93% Peak Efficiency.
  • >80% Light-Load Efficiency.
  • Wide 2.7V-to-6V Operating Input Range.
  • 80mΩ and 35mΩ Internal Power MOSFET.
  • 1MHz Fixed Switching Frequency.
  • Adjustable Output from 0.608V to VIN.
  • 180° Phase-Shifted Operation.
  • 100% Duty-Cycle Operation.
  • 45µA Quiescent Current.
  • Cycle-by-Cycle Over-Current Protection.
  • Short-Circuit Protection with Hiccup Mode.

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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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The Future of Analog IC Technology DESCRIPTION The MPQ2122 is an internally-compensated, 1MHz fixed-frequency, dual PWM, synchronous, step-down regulator. The MPQ2122 operates from a 2.7V-to-6V input, generates an output voltage as low as 0.608V, and has a 45µA quiescent current that makes it ideal for powering portable equipment that runs on a single cell lithium-ion (Li+) battery. The MPQ2122 integrates dual 80mΩ high-side switches and 35mΩ synchronous rectifiers for high efficiency without an external Schottky diode. Peak-current mode control and internal compensation limits the minimum number of readily-available external components. Fault-condition protections include cycle-by-cycle current limiting and thermal shutdown. The MPQ2122 is available in an 8-pin TSOT23-8 package.