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IR3448 Key Features

  • Single 5V to 21V application
  • Wide Input Voltage Range from 1.5V to 21V with external Vcc
  • Output Voltage Range: 0.6V to 0.86-PVin
  • 0.5% accurate Reference Voltage
  • Enhanced line/load regulation with Feed-Forward
  • Programmable Switching Frequency up to 1.5MHz
  • Internal Digital Soft-Start
  • Enable input with Voltage Monitoring Capability
  • Remote Sense Amplifier with True Differential Voltage Sensing
  • Thermally pensated current limit and Hiccup Mode Over Current Protection

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IR3448 Description

The IR3448 SupIRBuck® is an easy-to-use, fully integrated and highly efficient DC/DC regulator. The onboard PWM controller and MOSFETs make IR3448 a space-efficient solution, providing accurate power delivery for low output voltage and high current applications. IR3448 is a versatile regulator which offers programmability of switching frequency and current limit while operating in wide input and output voltage range.