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MP3424 - Synchronous Step-Up Converter

General Description

The MP3424 is a high-efficiency, synchronous, current-mode, step-up converter with output disconnect.

The MP3424 targets various load capability boosts from a battery input with an accurate load current limit.

Key Features

  • 2V to 5.5V Input Work Range.
  • 3V to 5.5V Output Range.
  • Supports 5V/3.1A Output from 2.8V Input.
  • Programmable up to 9.5A Switching Current Limit.
  • Programmable Average Load Current Limit.
  • 580kHz Fixed Frequency Switching.
  • Up to 97% Efficiency.
  • Internal Soft Start and Compensation.
  • True Output Load Disconnect from Input.
  • Over-Current Protection (OCP), Short- Circuit Protection (SCP), and OverTemperature Protection (OTP).
  • Available in a QFN-14 (.

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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 DESCRIPTION The MP3424 is a high-efficiency, synchronous, current-mode, step-up converter with output disconnect. The MP3424 targets various load capability boosts from a battery input with an accurate load current limit. The MP3424 starts up from an input voltage as low as 2V while providing inrush current limiting, output short-circuit protection (SCP), and programmable load current limit. The integrated P-channel synchronous rectifier improves efficiency and eliminates the need for an external Schottky diode. The P-channel MOSFET disconnects the output from the input during shutdown. The 580kHz switching frequency allows for small external components, while internal compensation and soft-start minimize the external component count.