3A, 28V, 925KHz Step-Down Converter

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Product Description

The MP2372 is a 925kHz step-down regulator with a built-in power MOSFET. It achieves 3A continuous output current over a wide input supply range with excellent load and line regulation. Current mode operation provides fast transient response and eases loop stabilization. Fault condition protection includes cycle-by-cycle current limiting and thermal shutdown. Adjustable soft-start reduces the stress on the input source at turn-on. In shutdown mode, the regulator draws 20μA of supply current. The MP2372 is available in an 8-pin SOIC package with an exposed pad, and requires a minimum number of readily available external components to complete a 3A step-down DC to DC converter solution. 


Product Features

  • 3A Continuous Output Current, 4A Peak Output Current
  • Programmable Soft-Start
  • 100mΩ Internal Power MOSFET Switch
  • Stable with Low ESR Output Ceramic Capacitors
  • Up to 91% Efficiency
  • 20μA Shutdown Mode
  • Fixed 925kHz Frequency
  • Thermal Shutdown
  • Cycle-by-Cycle Over Current Protection
  • Wide 4.5V to 28V Operating Input Range
  • Output is Adjustable From 0.92V to 21V
  • Under Voltage Lockout


  • fsw (max) (kHz)925
  • Vin (min) (V)4.5
  • Vin (max) (V)28
  • Iout (max) (A)3
  • Isw Limit (typ) (A)6.5
  • Max Duty Cycle (%)0.8
  • Vfb (V)0.92
  • Iq (typ) (mA)1.3
  • Regulated Outputs1
  • Vout (max) (V)21
  • Vout (min) (V)0.92
  • GradeCatalog
  • PackageSOIC-8N
  • Control ModeCurrent Mode
  • Common FeaturesExternal Soft Start

Reference Materials

Quality Policy, Certificates & Reliability Reports
All MPS parts are lead-free, halogen-free and adhere to the RoHS directive. See Environmental section for details.