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IR3558 - 45A Integrated PowIRstage

Description

The IR3558 integrated PowIRstage® is a synchronous buck gate driver co-packed with a control MOSFET and a synchronous MOSFET with integrated Schottky diode.

It is optimized internally for PCB layout, heat transfer and driver/MOSFET timing.

Features

  • Peak efficiency up to 94.0% at 1.2V.
  • Integrated driver, control MOSFET, synchronous MOSFET and Schottky diode.
  • Input voltage (VIN) operating range of 4.5V to 15V.
  • Separate LVCC and HVCC from 4.5V to 13.2V to optimize converter efficiency.
  • Output current capability of 45A DC.
  • Switching frequency up to 1.0MHz.
  • Programmable thermal flag threshold from 70°C to 150°C.
  • 5V VCC with under voltage lockout.
  • Low quiescent current.
  • Enable control.
  • Sele.

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Full PDF Text Transcription

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45A Integrated PowIRstage® IR3558 FEATURES  Peak efficiency up to 94.0% at 1.2V  Integrated driver, control MOSFET, synchronous MOSFET and Schottky diode  Input voltage (VIN) operating range of 4.5V to 15V  Separate LVCC and HVCC from 4.5V to 13.2V to optimize converter efficiency  Output current capability of 45A DC  Switching frequency up to 1.0MHz  Programmable thermal flag threshold from 70°C to 150°C  5V VCC with under voltage lockout  Low quiescent current  Enable control  Selectable regular 3.3V tri-state PWM logic or IR Active Tri-Level (ATL) PWM logic  PCB footprint compatible with most IR3551 pins  Efficient dual sided cooling  Small 5mm x 6mm x 0.
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