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MP2451DJ - Step-Down Converter

Download the MP2451DJ datasheet PDF. This datasheet also covers the MP2451 variant, as both devices belong to the same step-down converter family and are provided as variant models within a single manufacturer datasheet.

General Description

The MP2451 is a high frequency (2MHz) stepdown switching regulator with integrated internal high-side high voltage power MOSFET.

It provides single 0.6A (or less) highly efficient output with current mode control for fast loop response.

Key Features

  • 130μA Operating Quiescent Current.
  • Wide 3.3V to 36V Operating Input Range.
  • 500mΩ Internal Power MOSFET.
  • 2MHz fixed Switching Frequency.
  • Internally compensated.
  • Stable with Ceramic Output Capacitors.
  • Internal Soft-Start.
  • Precision Current Limit Without Current Sensing Resistor.
  • > 90% Efficiency.
  • Output Adjustable from +0.8V to 0.8xVIN.
  • 3μA Low Shutdown Supply Current.
  • SOT23-6 and TSOT23-6 Packages.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (MP2451-MPS.pdf) that lists specifications for multiple related part numbers.

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Other Datasheets by Monolithic Power Systems

Part Number Description
MP2451DT Step-Down Converter
MP2451 Step-Down Converter
MP2452 Step-Down Converter
MP2452DD Step-Down Converter
MP2454 0.6A 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 MP2451 is a high frequency (2MHz) stepdown switching regulator with integrated internal high-side high voltage power MOSFET. It provides single 0.6A (or less) highly efficient output with current mode control for fast loop response. The wide 3.3V to 36V input range accommodates a variety of step-down applications in automotive input environment. A 3μA shutdown mode quiescent current allows use in battery-powered applications. High power conversion efficiency over a wide load range is achieved by scaling down the switching frequency at light load condition to reduce the switching and gate driving losses. Frequency fold-back helps prevent inductor current runaway during start-up. Thermal shutdown provides reliable, fault-tolerant operation.