18V, 4A Synchronous Step-Down Converter with Low Rds, Ext.SS and Light Load Mode Selectable

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Product Description

The MP2308 is a synchronous rectified step-down switch mode converter with built in internal power MOSFETs. It offers a very compact solution to achieve 4A continuous output current over a wide input supply range with excellent load and line regulation. The MP2308 has synchronous mode operation for higher efficiency over output current load range. Current mode operation provides fast transient response and eases loop stabilization. Full protection features include OCP and thermal shut down.   The MP2308 requires a minimum number of readily available standard external components and is available in a space saving 2mm x 3mm 14-pin QFN package.


Product Features

  • Wide 4.75V to 18V Operating Input Range
  • 4A Output Current
  • Low Rds(ON) Internal Power MOSFETs
  • 300kHz-2MHz Programmable Switching Frequency
  • EN ON/OFF Control
  • Light Load Mode Selectable
  • External Soft Start
  • OCP and Thermal Shutdown
  • Available in 14-pin QFN2x3 Package


  • fsw (max) (kHz)2000
  • Vin (min) (V)4.75
  • Vin (max) (V)18
  • Iout (max) (A)4
  • Isw Limit (typ) (A)5.6
  • Max Duty Cycle (%)0.95
  • Vfb (V)0.815
  • Iq (typ) (mA)1
  • Regulated Outputs1
  • Vout (max) (V)16
  • Vout (min) (V)0.815
  • GradeCatalog
  • PackageQFN-14 (2x3)
  • Common FeaturesExternal Soft Start, Light-Load Efficiency, Synchronous Rectification

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.