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MPQ2451 - Industrial/Automotive-Grade 36V 2MHz 0.6A Step-Down Converter

General Description

The MPQ2451 is a high frequency, step-down, switching regulator with an integrated highvoltage high-side power MOSFET.

It efficiently provides up to a 0.6A output with current-mode control for fast loop response.

Key Features

  • Guaranteed Industrial/Automotive Temp. Range Limits.
  • 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 0.9.
  • VIN, Fixed 5V & 3.3V Output.
  • 6-Lead SOT23, TSOT23 an.

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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 MPQ2451 Industrial/Automotive-Grade 36V, 2MHz, 0.6A Step-Down Converter AEC-Q100 Qualified DESCRIPTION The MPQ2451 is a high frequency, step-down, switching regulator with an integrated highvoltage high-side power MOSFET. It efficiently provides up to a 0.6A output with current-mode control for fast loop response. The wide 3.3V-to-36V input range accommodates a variety of automotive step-down applications, and the 3μA shutdown-mode quiescent current allows use in battery-powered applications. The MPQ2451 achieves high power-conversion efficiency over a wide load range by scaling down the switching frequency under light-load condition to reduce the switching and gate driving losses. Frequency fold-back prevents inductor current runaway during start-up.