MP3422

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6.5A, 600kHz High Efficiency, Synchronous Step-Up Converter with Output Disconnect



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产品描述

The MP3422 is a high-efficiency, synchronous, current–mode, step-up converter with output disconnect.
The MP3422 can start up from an input voltage as low as 1.9V while provide inrush 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 PMOS disconnects the output from the input when the part shuts down.
The 600kHz switching frequency allows for small external component, while the internal compensation and soft-start minimize external component count. The MP3422 provides small size solution for 5V/2.5A load from a supply voltage down to 2.8V.
The MP3422 is available in 14-pin QFN 2mmx2mm package.

产品特性

  • 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
  • >6.5A 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 2x2mm QFN14 Package

技术参数

  • Vout (min) (V)2.5
  • 最小输入电压1.9
  • Vin (max) (V)5.5
  • Isw Limit (typ) (A)6.5
  • Iq (typ) (mA)0.043
  • 额定输出1
  • fsw (max) (kHz)600
  • Vout (max) (V)5.5
  • Vfb (V)0.807
  • PackageQFN-14 (2x2)
  • GradeCatalog
  • Special FeaturesEnable, Output Disconnect
  • SS内部
  • Down ModeNo
  • PGNo
  • Input/Output DisconnectYes

6.5A, 600kHz Synchronous Step-up Converter Output Disconnect Evaluation Board

EV3422-G-00A Evaluation Board is designed to demonstrate the capability of MP3422. MP3422 is a high-efficiency, synchronous, current-mode, step-up converter with output disconnect.

The MP3422 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 MP3422 is available in 14-pin QFN 2mmx2mm package.

US$ 25.00 + tax


参考资料