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MP2120DQ - 5.5V Synchronous Step-Down Switching Regulator

Download the MP2120DQ datasheet PDF. This datasheet also covers the MP2120 variant, as both devices belong to the same 5.5v synchronous step-down switching regulator family and are provided as variant models within a single manufacturer datasheet.

General Description

The MP2120 is an internally compensated 1.5MHz fixed frequency PWM synchronous step-down regulator.

MP2120 operates from a 2.7V to 5.5V input and generates an output voltage as low as 0.8V.

Key Features

  • 2.5A Output Current.
  • Input Operation Range: 2.7V to 5.5V.
  • All Ceramic Capacitor Design.
  • Up to 95% Efficiency.
  • 1.5MHz Fixed Switching Frequency.
  • Adjustable Output from 0.8V to 0.9xVIN.
  • Internal Soft-Start.
  • Frequency Synchronization Input.
  • Power Good Output.
  • Cycle-by-Cycle Current Limiting.
  • Hiccup Short Circuit Protection.
  • Thermal Shutdown.
  • 3mm x 3mm 10-lead QFN Package.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (MP2120-MPS.pdf) that lists specifications for multiple related part numbers.

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Other Datasheets by Monolithic Power Systems

Part Number Description
MP2120 5.5V Synchronous Step-Down Switching Regulator
MP2122A Synchronous Buck Regulator
MP2122AGJ Synchronous Buck Regulator
MP2125 1.2MHz Synchronous Step-Down Converter
MP2125DL 1.2MHz Synchronous Step-Down Converter

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 MP2120 is an internally compensated 1.5MHz fixed frequency PWM synchronous step-down regulator. MP2120 operates from a 2.7V to 5.5V input and generates an output voltage as low as 0.8V. The MP2120 integrates an 80mΩ high-side switch and a 60mΩ synchronous rectifier for high efficiency without an external Schottky diode. With peak current mode control and internal compensation, the MP2120 based solution delivers a very compact footprint with a minimum component count. The MP2120 is available in a small 3mm x 3mm 10-lead QFN package. TYPICAL APPLICATION VIN POK OFF ON IN POK BS SW MP2120 EN/SYNC FB GND C3 10nF 1.2 MP2120 2.5A, 5.5V Synchronous Step-Down Switching Regulator FEATURES  2.5A Output Current  Input Operation Range: 2.