High Efficiency 3A, 24V, 500kHz,with AAM (light load mode),Synchronous Step Down Converter in TSOT23-8

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Product Description

The MP2315 is a high frequency synchronous rectified step-down switch mode converter with built in internal power MOSFETs. It offers a very compact solution to achieve 3A continuous output current over a wide input supply range with excellent load and line regulation. The MP2315 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 MP2315 requires a minimum 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
  • 3A Load Current
  • 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
  • AAM Power Save Mode
  • Internal Soft Start
  • OCP Protection and Hiccup
  • Thermal Shutdown
  • Output Adjustable from 0.8V
  • Available in an 8-pin TSOT-23 package


  • fsw (max) (kHz)500
  • Vin (min) (V)4.5
  • Vin (max) (V)24
  • Iout (max) (A)3
  • Isw Limit (typ) (A)5.5
  • Max Duty Cycle (%)0.95
  • Vfb (typ) (V)0.791
  • Iq (typ) (mA)0.18
  • Regulated Outputs1
  • Vout (max) (V)22.8
  • Vout (min) (V)0.8
  • GradeCatalog
  • PackageTSOT23-8
  • Control ModeCurrent Mode
  • Common FeaturesLight-Load Efficiency, Synchronous Rectification
  • Special FeaturesExternal Frequency Sync

Reference Materials