2A, 16V, 500kHz, Synchronous Step-Down Converter with forced CCM



The MP1470B is a high frequency, synchronous, rectified, step-down, switch-mode converter with internal power MOSFETs. It offers a very compact solution to achieve a 2A continuous output current over a wide input supply range with excellent load and line regulation. The MP1470B has synchronous mode operation for higher efficiency over the output current load range. Current-mode operation provides fast transient response and eases loop stabilization. Protection features include over-current protection and thermal shutdown. The MP1470B requires a minimal number of readily available, standard, external components and is available in a compact 6-pin TSOT23 package.



  • Wide 4.7V to 16V Operating Input Range
  • 163mO/86mO Low-RDS(ON) Internal Power MOSFETs
  • Proprietary Switching Loss Reduction Technique
  • High-Efficiency Synchronous Mode Operation
  • Fixed 500kHz Switching Frequency
  • Forced PWM
  • Internal Soft Start
  • Over-Current Protection and Hiccup Mode
  • Thermal Shutdown
  • Output Adjustable from 0.8V
  • Available in a 6-Pin TSOT23 Package


  • fsw (max) (kHz)500
  • Vin (min) (V)4.7
  • Vin (max) (V)16
  • Iout (max) (A)2
  • Isw Limit (typ) (A)3.7
  • Max Duty Cycle (%)0.92
  • Vfb (V)0.8
  • Iq (typ) (mA)0.83
  • Regulated Outputs1
  • Vout (min) (V)0.8
  • GradeCatalog
  • PackageTSOT23-6
  • Control ModeCurrent Mode
  • Common FeaturesLight-Load Efficiency, Synchronous Rectification