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MPQ4483 - Step-Down Converter

Description

The MPQ4483 is a high-frequency, synchronous rectified, step-down, switch-mode converter.

It achieves 3A output current over a wide input supply range with excellent load and line regulation.

The MPQ4483 has synchronous mode operation for higher efficiency over the output load range.

Features

  • Supports BC1.2 CDP Mode.
  • Supports BC1.2 DCP Mode, Apple Divider Mode, 1.2V/1.2V Mode.
  • Supports Bidirectional USB2.0 High-Speed Data Switch.
  • 4.2V to 36V Operating Input Voltage Range.
  • 3A Output Current.
  • Internal Auto EN Pull-Up.
  • 25mΩ/20mΩ Low RDS(ON) Internal Buck Power MOSFETs.
  • Integrated 4mΩ Ground Sensing Resistor.
  • Frequency Adjustable (200kHz to 2.2MHz).
  • Constant Current Limit, 2 Level Adjustable.
  • Forced PWM Mode.
  • Frequency SYNC fr.

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Full PDF Text Transcription

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MPQ4483 3A, 36V, Step-Down Converter with DCP and CDP Mode and Ground Short to Battery Protection for Automotive, AEC-Q100 Qualified DESCRIPTION The MPQ4483 is a high-frequency, synchronous rectified, step-down, switch-mode converter. It achieves 3A output current over a wide input supply range with excellent load and line regulation. The MPQ4483 has synchronous mode operation for higher efficiency over the output load range. The MPQ4483 has a constant current (CC) limit function for the output with two adjustable CC limit thresholds. The MPQ4483 also supports BC 1.2 DCP mode and CDP mode. Fault condition protection includes hiccup current limiting, OVP, ground short to battery protection, and thermal shutdown (TSD).
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