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MPQ4436 - Synchronous Step-Down Converter

Description

The MPQ4436/4436A is a frequency programmable, synchronous, step-down switching regulator with integrated internal highside and low-side power MOSFETs.

It provides 6A (or less) of highly efficient output, with current mode control for fast loop response.

Features

  • Wide 3.3V to 45V Operating Voltage Range.
  • 6A Continuous Output Current.
  • 1.7μA Low Shutdown Supply Current.
  • 18μA Sleep Mode Quiescent Current.
  • Internal 48mΩ High-Side and 20mΩ Low- Side MOSFET.
  • 350kHz to 1000kHz Programmable Switching Frequency for Car Battery.

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DESCRIPTION The MPQ4436/4436A is a frequency programmable, synchronous, step-down switching regulator with integrated internal highside and low-side power MOSFETs. It provides 6A (or less) of highly efficient output, with current mode control for fast loop response. The wide 3.3V to 45V input range accommodates a variety of step-down applications in an automotive input environment. A 1.7μA shutdown mode quiescent current allows the part to be used in battery-powered applications. High power conversion efficiency over a wide load range is achieved by scaling down the switching frequency in light-load conditions to reduce the switching and gate driving losses. An open-drain power good signal indicates that the output is within 93% to 106% of its nominal voltage.
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