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MP2452 - Step-Down Converter

General Description

The MP2452 is a high frequency (1MHz) stepdown switching regulator with integrated internal high-side high voltage power MOSFET.

It provides up to 1A highly efficient output current with current mode control for fast loop response.

Key Features

  • 1A Continuous Load Current.
  • 130 µA Operating Quiescent Current.
  • Wide 3.3V to 36V Operating Input Range.
  • 500 mΩ Internal Power MOSFET.
  • 1MHz fixed Switching Frequency.
  • Internally compensated.
  • Stable with Ceramic Output Capacitors.
  • Internal Soft-Start.
  • > 90% Efficiency.
  • +0.794V FB Reference Voltage.
  • Output Adjustable from +0.794V to 33V.
  • 3µA Low Shutdown Supply Current.
  • 2mm x 3mm QF.

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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 DESCRIPTION The MP2452 is a high frequency (1MHz) stepdown switching regulator with integrated internal high-side high voltage power MOSFET. It provides up to 1A highly efficient output current 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.