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MP2269 - Step-Down Converter

Description

The MP2269 is a frequency-programmable (350kHz to 2.5MHz), synchronous, step-down, switching regulator with integrated, internal, high-side and low-side power MOSFETs.

The MP2269 provides 1A of highly efficient output current with current-mode control for fast loop response.

Features

  • Wide 3.3V to 30V Operating Voltage Range.
  • 1A Continuous Output Current.
  • 1μA Low Shutdown Supply Current.
  • 12μA Sleep Mode Quiescent Current.
  • 180mΩ/80mΩ High-Side/Low-Side RDS(ON) for Internal Power MOSFETs.
  • 350kHz to 2.5MHz Programmable Switching Frequency.
  • Power Good Output.
  • External Soft Start.
  • 80ns Minimum On Time.
  • Selectable Forced PWM Mode and Auto PFM/PWM Mode.
  • Low Dropout Mode.
  • Hiccup Over-Current Protection (OCP).
  • Available.

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Full PDF Text Transcription

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The Future of Analog IC Technology DESCRIPTION The MP2269 is a frequency-programmable (350kHz to 2.5MHz), synchronous, step-down, switching regulator with integrated, internal, high-side and low-side power MOSFETs. The MP2269 provides 1A of highly efficient output current with current-mode control for fast loop response. The wide 3.3V to 30V input range accommodates a variety of step-down applications. A 1μA shutdown mode quiescent current allows the MP2269 to be used 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 switching and gate driving losses. An open-drain power good signal indicates the output signal.
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