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MP3421GG - Synchronous Step-Up Converter

Download the MP3421GG datasheet PDF. This datasheet also covers the MP3421 variant, as both devices belong to the same synchronous step-up converter family and are provided as variant models within a single manufacturer datasheet.

Description

The MP3421 is a high-efficiency, synchronous, current

mode, step-up converter with true output disconnect.

The MP3421 starts up from low input voltage (as low as 1.9V) while providing in-rush current limiting and output short-circuit protection.

Features

  • Support 5V/2.1A Output at 2.8V Input.
  • Up to 98% Efficiency.
  • 1.9V to 5.5V Input Range.
  • 2.5V to 5.5V Output Range.
  • Internal Synchronous Rectifier.
  • 600kHz Fixed-Switching Frequency.
  • >5.5A Switch-Current Limit Capability.
  • 43uA Quiescent Current.
  • High-Efficiency over Full-Load Range.
  • Internal Soft-start and Compensation.
  • Output-Load Disconnect from Input.
  • OCP, SCP, OVP and OTP Protection.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (MP3421-MPS.pdf) that lists specifications for multiple related part numbers.

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Other Datasheets by Monolithic Power Systems

Part Number Description
MP3421 Synchronous Step-Up Converter
MP3422 Synchronous Step-Up Converter
MP3422GG Synchronous Step-Up Converter
MP3424 Synchronous Step-Up Converter
MP3424GG Synchronous Step-Up Converter

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.

View original datasheet text
The Future of Analog IC Technology MP3421 5.5A, 600kHz High-Efficiency, Synchronous Step-Up Converter with True Output Disconnect in a 2mmx2mm QFN Package DESCRIPTION The MP3421 is a high-efficiency, synchronous, current–mode, step-up converter with true output disconnect. The MP3421 starts up from low input voltage (as low as 1.9V) while providing in-rush current limiting and output short-circuit protection. The integrated, P-channel synchronous rectifier improves efficiency and eliminates the need for an external Schottky diode; the P-channel disconnects the output load from the input during shutdown. The MP3421 has 600kHz switching frequency, which accommodates small external components. In addition, its internal compensation and soft-start functions minimize external component count.