EV3421-G-00A

New
5.5A, 600kHz Synchronous Step-up Converter with Output Disconnect Evaluation Board
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Product Description

EV3421-G-00A Evaluation Board is designed to demonstrate the capability of MP3421. MP3421 is a high-efficiency, synchronous, current-mode, step-up converter with output disconnect.

The MP3421 can provide inrush current limiting and output short-circuit protection. It can work with an input voltage as low as 1.9V. The integrated P-channel synchronous rectifier improves efficiency and eliminates the need for an external Schottky diode. The PMOS disconnects the output from the input when the part shuts down.

The 600kHz switching frequency allows for small external components, while the internal compensation and soft-start minimize the external component count. The MP3421 is available in 14-pin QFN 2mmx2mm package.

Product Features

  • 1.9V to 5.5V Input Work Range
  • 2.5V to 5.5V Output Range
  • Internal Synchronous Rectifier
  • 600kHz Fixed Frequency Switching
  • >5.5A Switch Current Limit Capability
  • 43uA Quiescent Current
  • High Efficiency over Full Load Range
  • Internal Soft-start and Compensation
  • True Output Load Disconnect from Input
  • OCP, SCP, OVP and OTP Protection
  • Small QFN2x2-14 Package

Parametrics

  • IC Supported 1MP3421

Monolithic IC

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IC Details

The MP3421 is a high-efficiency, synchronous, current?ode, 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. The MP3421 provides a compact solution for a 5V output, 2.1A load requirement, using a supply voltage as low as 2.8V. The MP3421 is available in a 14-pin QFN 2mmx2mm package.