MPQ3425-AEC1, Automotive Grade, 3A, 50V Boost Converter with Programmable Switching Frequency



The MPQ3425 is a current-mode, step up converter with a 3.5A, 90mΩ internal switch that provides a highly efficient regulator with fast response. The MPQ3425 features a programmed frequency of up to 2MHz that provides easy filtering and low noise. An external compensation pin allows for flexibility in setting loop dynamics and operates with small, low ESR ceramic output capacitors. The soft-start feature provides a small inrush current and can be programmed with an external capacitor. The MPQ3425 operates with an input voltage as low as 3.1V and can generate 48V at up to 350mA from a 12V supply.

Full protection features include under-voltage lockout (UVLO), current limiting, and thermal overload protection. The MPQ3425 is available in a low-profile QFN-14 (3mmx4mm) package with an exposed pad.


  • Guaranteed Industrial and Automotive Temp Range Limits
  • 3.5A, 90mΩ, 55V Power MOSFET
  • Uses Small Capacitors and Inductors
  • Wide Input Range: 3.1V to 22V
  • Output Voltage up to 55V
  • Programmable FSW: 300kHz - 2MHz
  • Programmable Under-Voltage Lockout (UVLO), Soft-Start, UVLO Hysteresis
  • Micropower Shutdown <1μA
  • Thermal Shutdown
  • Available in a QFN-14 (3mmx4mm) Package
  • AEC-Q100 Qualified Grade 1


  • Vout (min) (V)3.1
  • 最小输入电压3.1
  • Vin (max) (V)22
  • Isw Limit (typ) (A)5
  • Iq (typ) (mA)0.65
  • 额定输出1
  • fsw (max) (kHz)2000
  • Vout (max) (V)50
  • Vfb (V)1.225
  • GradeAutomotive
  • PackageQFN-14 (3x4)
  • Special FeaturesFrequency Adjustable, Programmable UVLO
  • SS外部
  • Down ModeNo
  • PGNo
  • Input/Output DisconnectNo