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MPQ2122GJ - SYNC Buck Regulator

Download the MPQ2122GJ datasheet PDF. This datasheet also covers the MPQ2122 variant, as both devices belong to the same sync buck regulator family and are provided as variant models within a single manufacturer datasheet.

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.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (MPQ2122-MPS.pdf) that lists specifications for multiple related part numbers.

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Other Datasheets by Monolithic Power Systems

Part Number Description
MPQ2122 SYNC Buck Regulator
MPQ2128 Step-Down Converter
MPQ2128DG Step-Down Converter
MPQ2143 Synchronous Step-Down Switcher
MPQ2143DJ Synchronous Step-Down Switcher

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.

View original datasheet text
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.