Industrial Grade, 3A, 24V, 500kHz, Synchronous Step-Down Converters With PG, Light Load Mode and Low Iq

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Product Description

The MPQ2325 is a high-frequency, synchronous, rectified, step-down, switch-mode converter with built-in, internal power MOSFETs. It offers a very compact solution that achieves 3A of continuous output current with excellent load and line regulation over a wide input supply range. The MPQ2325 uses synchronous mode operation for higher efficiency over the output current load range. Current mode operation provides a fast transient response and eases loop stabilization. Full protection features include over-current protection (OCP) and thermal shutdown. The MPQ2325 requires a minimal number of readily available, standard, external components and is available in a space-saving, 8-pin, TSOT23 package.

Product Features

  • Wide 4.5V to 24V Operating Input Range
  • 90mO/40mO Low RDS(ON) Internal Power MOSFETs
  • Low Quiescent Current
  • High-Efficiency Synchronous Mode Operation
  • Fixed 500kHz Switching Frequency
  • Frequency Sync from 200kHz to 2MHz External Clock
  • Power-Save Mode at Light Load
  • Internal Soft Start
  • Power Good Indicator
  • Over-Current Protection (OCP) and Hiccup
  • Thermal Shutdown
  • Output Adjustable from 0.8V
  • Available in a TSOT23-8 Package


  • fsw (max) (kHz)500
  • Vin (min) (V)4.5
  • Vin (max) (V)24
  • Iout (max) (A)3
  • Vfb (typ) (V)0.791
  • Iq (typ) (mA)0.18
  • GradeIndustrial
  • PackageTSOT23-8
  • Control ModeCurrent Mode
  • Common FeaturesLight-Load Efficiency, Power Good, Synchronous Rectification
  • Special FeaturesExternal Frequency Sync