Current Programmable, CC/CV, Synchronous, Step-Up Converter with Output Disconnect
  • 1
    US$ 0.00 /unit


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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. The MP3424 provides flexible current limit programming for up to 5V/3.1A load from a supply voltage down to 2.8V.
The MP3424 is available in a QFN-14 (2mmx2mm) package.


  • 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 Over-Temperature Protection (OTP)
  • Available in a QFN-14 (2mmx2mm) Package


  • Vout (min) (V)3
  • 最小输入电压2
  • Vin (max) (V)5.5
  • Isw Limit (typ) (A)9.5
  • Iq (typ) (mA)0.32
  • 额定输出1
  • fsw (max) (kHz)580
  • Vout (max) (V)5.5
  • Vfb (V)0.805
  • PackageQFN-14 (2x2)
  • GradeCatalog
  • Special FeaturesCurrent Limiting, Output Disconnect, OVP, Programmable Current Limit
  • SS内部
  • Down ModeYes
  • PGNo
  • Input/Output Disconnect