2A, 6V, 0.7-2MHz Step-Down Converter with Programmable Input Current Limit



The MP2115 is a high frequency, current mode, PWM step-down converter with integrated input current limit switch. The step-down converter integrates a main switch and a synchronous rectifier for high efficiency without an external Schottky diode. The input average current limit can be externally programmed. It is ideal for powering portable equipment that is powered by an USB port. The MP2115 can supply 2A of load current from a 2.8V to 6V input voltage. The output voltage can be regulated as low as 0.6V.  The MP2115 is available in a space saving 10 pin QFN package.



  • High Efficiency: Up to 92%
  • Programmable Switching Frequency from 0.7MHz-2MHz
  • Programmable Input Current Limit
  • 2A Available Load Current
  • 2.8V to 6V Input Voltage Range
  • Output Voltage as Low as 0.6V
  • Current Mode Control
  • Power Good Indicator
  • Short Circuit Protection
  • Thermal Fault Protection
  • <0.1μA Shutdown Current
  • Space Saving 3mm x 3mm QFN10 Package


  • fsw (max) (kHz)1300
  • Vin (min) (V)2.8
  • Vin (max) (V)6
  • Iout (max) (A)2
  • Isw Limit (typ) (A)3.5
  • Max Duty Cycle (%)1
  • Vfb (V)0.607
  • Iq (typ) (mA)0.8
  • Regulated Outputs1
  • Vout (max) (V)6
  • Vout (min) (V)0.6
  • GradeCatalog
  • PackageQFN-10 (3x3)
  • Control ModeCurrent Mode
  • Common FeaturesPower Good, Synchronous Rectification
  • Special Features100% Duty Cycle, Programmable Frequency