IR3558 Overview
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. Custom designed gate driver and MOSFET bination enables higher efficiency at lower output voltages required by cutting edge CPU, GPU and DDR memory designs.
IR3558 Key Features
- Peak efficiency up to 94.0% at 1.2V
- Integrated driver, control MOSFET, synchronous
- Input voltage (VIN) operating range of 4.5V to 15V
- Output current capability of 45A DC
- Switching frequency up to 1.0MHz
- 5V VCC with under voltage lockout
- Low quiescent current
- Enable control
- Selectable regular 3.3V tri-state PWM logic or IR
- PCB footprint patible with most IR3551 pins