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MP2149GJ - SYNC Buck Regulator

Download the MP2149GJ datasheet PDF. This datasheet also covers the MP2149 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 MP2149 is an internally-compensated, 1MHz fixed-frequency, dual PWM, synchronous, step-down regulator.

Key Features

  • Dual 1A-Output Current.
  • >93% Peak Efficiency.
  • >80% Light-Load Efficiency.
  • Wide 2.7V-to-6V Operating Input Range.
  • 100mΩ and 40mΩ 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 (MP2149-MPS.pdf) that lists specifications for multiple related part numbers.

Other Datasheets by Monolithic Power Systems

Part Number Description
MP2149 SYNC Buck Regulator
MP2141N Step-Down Converter
MP2141Q Synchronous Step-Down Converter
MP2143 COT Synchronous Step Down Switcher
MP2143DJ COT Synchronous Step Down Switcher
MP2143H Synchronous Step Down Switcher
MP2143HGD Synchronous Step Down Switcher
MP2144 Synchronous Step Down Switcher
MP2144GJ Synchronous Step Down Switcher
MP2145 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 MP2149 6V, 1A, Low Quiescent Current Dual, SYNC Buck Regulator DESCRIPTION The MP2149 is an internally-compensated, 1MHz fixed-frequency, dual PWM, synchronous, step-down regulator. The MP2149 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 MP2149 integrates dual 100mΩ high-side switches and 40mΩ 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.