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MP2147 - Step-Down Switcher

General Description

The MP2147 is a monolithic, step-down, switchmode converter with internal power MOSFETs.

It can achieve up to 4A continuous output current from a 2.8V-to-5.5V input voltage with excellent load and line regulation.

The output voltage can be regulated to as low as 0.6V.

Key Features

  • Up to 4A Output Current.
  • Wide 2.8V-to-5.5V Operating Input Range.
  • 22mΩ and 14mΩ Internal Power MOSFETs.
  • 40µA Quiescent Current.
  • 1.2MHz Fixed Switching Frequency.
  • 1% Feedback Accuracy.
  • External Mode Control.
  • External VCON Control.
  • Adjustable Output from 0.6V.
  • 1.5ms Internal SS Time with Pre-Bias Startup.
  • Cycle-by-Cycle Over Current Protection.
  • Short Circuit Protection with Hiccup Mode.
  • Stable with Low-ESR Output Ceramic Capacitors.

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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 MP2147 5.5V, 4A, 1.2MHz, High-Efficiency, 40μA IQ Constant On-Time Synchronous, Step-Down Switcher DESCRIPTION The MP2147 is a monolithic, step-down, switchmode converter with internal power MOSFETs. It can achieve up to 4A continuous output current from a 2.8V-to-5.5V input voltage with excellent load and line regulation. The output voltage can be regulated to as low as 0.6V. Constant-on-time control provides a fast transient response and eases loop stabilization. Fault condition protections include cycle-by-cycle current limiting and thermal shutdown. The MP2147 is available in a small QFN2×3mm package and requires only a minimal number of readily-available, standard, external components.