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IR3895 Description

The IR3895 SupIRBuckTM is an easy‐to‐use, fully integrated and highly efficient DC/DC regulator. The onboard PWM controller and MOSFETs make IR3895 a space‐efficient solution, providing accurate power delivery. IR3895 is a versatile regulator which offers programmable of switching frequency and the fixed internal current limit while operates in wide input and output voltage range.

IR3895 Key Features

  • Single 5V to 21V application 
  • Wide Input Voltage Range from 1.0V to 21V with  external Vcc  
  • Output Voltage Range: 0.5V to 0.86×Vin 
  • Enhanced Line/Load Regulation with Feed‐Forward 
  • Programmable Switching Frequency up to 1.5MHz 
  • Internal Digital Soft‐Start/Soft‐Stop 
  • Enable input with Voltage Monitoring Capability 
  • Thermally pensated Current Limit with robust  hiccup mode over current protection 
  • Smart internal LDO to improve light load and full load  efficiency  
  • External Synchronization with Smooth Clocking