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Home » NEWEST Products » New by Category » Power » IR3823 SupIRBuck Voltage Regulators - International Rectifier
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International Rectifier IR3823 SupIRBuck Voltage Regulators

International Rectifier IR3823 SupIRBuck Voltage Regulators

International Rectifier IR3823 SupIRBuck is a 3A easy-to-use, fully integrated and highly efficient synchronous Buck regulator intended for Point-Of-Load (POL). The IR3823 features programmable switching frequency from 300kHz to 1.5MHz, three selectable soft-start time options, and smooth synchronization to an external clock. The IR3823 uses voltage mode control employing a proprietary PWM modulator, allowing high control bandwidth and fast loop response with less output capacitors. The other important functions include thermally compensated over current protection, output over voltage protection and thermal shut-down, etc. International Rectifier IR3823 is offered in a small 3.5mm x 3.5mm PQFN package with excellent thermal performance.


Features
  • Single input voltage range from 5V to 21V
  • Wide Input voltage range from 1.0V to 21V with external VCC bias voltage
  • Output voltage from 0.6V to 0.86% of PVin
  • Enhanced line/load regulation with feedforward
  • Programmable switching frequency up to 1.5MHz
  • Three user selectable soft-start time options
  • Thermally compensated current limit with robust hiccup mode over current protection
  • Synchronization to an external clock
  • Precise reference voltage (0.6V+/-0.6%)
  • Open-drain PGood indication
  • Output over voltage protection
  • Enable Input with Under-Voltage Lockout (UVLO)
  • VCC Under-Voltage Lockout (UVLO)
  • Enhanced Pre-bias start-up
  • Integrated MOSFET drivers and Bootstrap Diode
  • Thermal shut-down
  • -40°C to 125°C operating junction temperature
  • 3.5mm x 3.5mm PQFN package

Applications
  • Computing
  • Set Top Box
  • Storage
  • Data Center
  • Telecom
  • Distributed Point of Load
    Power Architectures

IR3823 Basic Application Circuit
IR3823 Basic Application Circuit

IR3823 Block Diagram
IR3823 Block Diagram

  • International Rectifier