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MPQ4569-AEC1 - 0.3A Synchronous Step-Down Converter

General Description

The MPQ4569 is a step-down switching regulator with integrated high-side/low-side, high-voltage power MOSFETs.

It provides a highly efficient output of up to 0.3A.

The wide 4.5V to 75V input range accommodates a variety of step-down applications in automotive environment.

Key Features

  • 20μA Quiescent Current (Active mode).
  • Wide 4.5V to 75V Operating Input Range.
  • 1.2Ω/0.45Ω Internal Power MOSFETs.
  • Programmable Soft-Start.
  • FB-Tolerance: 1% at Room Temperature; 2% at Full Temperature.
  • Adjustable Output Voltage.
  • 1V Reference Voltage Output for QFN Package.
  • Low Shutdown Mode Current: 5μA.
  • Available in QFN-10 (3mmx3mm) and SOIC-8 EP Packages.
  • Available in AEC-Q100 Grade 1.

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Full PDF Text Transcription (Reference)

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MPQ4569-AEC1 75V, 0.3A Synchronous Step-Down Converter AEC-Q100 Qualified DESCRIPTION The MPQ4569 is a step-down switching regulator with integrated high-side/low-side, high-voltage power MOSFETs. It provides a highly efficient output of up to 0.3A. The wide 4.5V to 75V input range accommodates a variety of step-down applications in automotive environment. A 5μA shutdown mode quiescent current in full temperature range is good for battery-powered applications. It allows for 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 driver losses. The switching frequency during start-up and short circuit also can be scaled down to prevent inductor current runaway.