Infineon Technologies IR3899A Buck Regulator

Infineon Technology IR3899A Buck Regulator is a 9A easy-to-use, fully integrated synchronous buck regulator. This regulator uses a compensation-free fast Constant-On-Time (COT) control scheme, that simplifies the design effort. The IR3899A regulator The IR3899A is a versatile regulator that offers a programmable switching frequency range from 600kHz to 2MHz. This regulator comes in a small 4mm x 5mm PQFN package with excellent thermal performance. This regulator is suitable for server applications, storage, telecom and datacom, distributed Point-of-Load power architectures, and artificial intelligence applications.

Features

  • 4.3V to 17V wide input voltage range
  • Precision reference voltage (0.6V +/-0.5%)
  • Compensation free enhanced fast COT engine
  • Optional forced continuous conduction mode or diode emulation for enhanced light load efficiency
  • Programmable switching frequency range from 600kHz to 2MHz
  • Selectable OCP limit
  • Enable input with voltage monitoring
  • PGOOD – power good output
  • Monotonic start-up
  • Two selectable soft-start time
  • Enhanced pre-bias start-up
  • Thermal shut down
  • -40°C < Tj < 125°C operating junction temperature range
  • Small size 4mm x 5mm PQFN
  • Halogen-free and RoHS compliant
  • Easy-to-use fast Constant-On-Time PWM engine
  • High efficiency
  • Accurate output voltage regulation
  • Superior transient response
  • Low BOM

Applications

  • Server applications
  • Storage applications
  • Telecom and datacom applications
  • Distributed Point of Load power architectures

Block Diagram

Block Diagram - Infineon Technologies IR3899A Buck Regulator

Application Block Diagram

Application Circuit Diagram - Infineon Technologies IR3899A Buck Regulator

Infineon Power and Sensing Selection Guide

Infineon Technologies IR3899A Buck Regulator