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IR3556 Datasheet Synchronous Buck Gate Driver

Manufacturer: International Rectifier (now Infineon)

Overview: 50A Integrated PowIRstage® IR3556.

General Description

The IR3556 integrated PowIRstage® contains a synchronous buck gate driver IC which is co-packed with control and synchronous MOSFETs and a Schottky diode to further improve efficiency.

The package is optimized for PCB layout, heat transfer, driver/MOSFET control timing, and minimal switch node ringing when layout guidelines are followed.

The paired gate driver and MOSFET combination enables higher efficiency at lower output voltages required by cutting edge CPU, GPU, ASIC and DDR memory designs.

Key Features

  • Integrated driver, Schottky diode, control MOSFET and synchronous MOSFET.
  • 5mV / A on-chip MOSFET current sensing with temperature compensated reporting.
  • Input voltage (VIN) range of 4.5V to 15V.
  • VCC and VDRV supply of 4.5V to 7V.
  • Output voltage range from 0.25V up to 5.5V.
  • Output current capability of 50A.
  • Operation up to 1.0MHz.
  • VCC under voltage lockout (UVLO).
  • 8mV / oC temperature analog output and thermal flag pull-up to 3.3V.
  • Over temperatu.

IR3556 Distributor & Price

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