5A, 21V, 600KHz Step-Down Converter



The MP2380 is a monolithic step-down switch mode converter with a built in high-side power MOSFET. It achieves 5A 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. The MP2380 requires a minimum number of readily available standard external components and is available in an 8-pin SOIC package with exposed pad.



  • Wide 4.5V to 21V Operating Input Range
  • 5A Continuous Output Current
  • 45mO Internal Power MOSFET Switch
  • Power Good Indicator
  • Fixed 600kHz Frequency
  • Synchronizable Up to 1.5 MHz
  • Cycle-by-Cycle Over Current Protection
  • Thermal Shutdown
  • Output Adjustable from 0.8V to 15V
  • Stable with Low ESR Output Ceramic Capacitors
  • Available in a Thermally Enhanced 8-Pin SOIC Package


  • fsw (max) (kHz)600
  • 最小输入电压4.5
  • Vin (max) (V)21
  • Iout (max) (A)5
  • Isw Limit (typ) (A)7.3
  • Max Duty Cycle (%)0.9
  • Vfb (V)0.808
  • Iq (typ) (mA)0.9
  • 额定输出1
  • Vout (min) (V)0.8
  • GradeCatalog
  • Control ModeCurrent Mode
  • Common FeaturesPower Good
  • Special Features外部频率同步