Overview
The IR3550MTRPBF, produced by Infineon Technologies, is a 60A Integrated PowIRstage® that combines a synchronous buck gate driver with a control MOSFET and a synchronous MOSFET, along with an integrated Schottky diode. This integrated solution is optimized for high-efficiency power delivery, particularly in applications requiring low output voltages such as CPU, GPU, and DDR memory arrays. The IR3550 is designed to enhance efficiency, reduce component count, and minimize solution size and cost.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Input Voltage (VIN) Operating Range | VIN | 4.5 | 15 | V | ||
| Output Voltage Range | VOUT | 0.25 | Vcc-2.5V or 5.5V | V | ||
| Output Current Capability | IOUT | 60 | A | |||
| Switching Frequency | fSW | 1.0 | MHz | |||
| VCC Under Voltage Lockout Start Threshold | VVCC_START | 3.3 | 3.7 | 4.1 | V | |
| VCC Under Voltage Lockout Stop Threshold | VVCC_STOP | 3.0 | 3.4 | 3.8 | V | |
| Thermal Resistance (θJA) | θJA | 20.2 | °C/W | |||
| Maximum Operating Junction Temperature | TJ | -40 | 150 | °C | ||
| Maximum Storage Temperature Range | TSTG | -65 | 150 | °C |
Key Features
- Peak efficiency up to 95% at 1.2V
- Integrated driver, control MOSFET, synchronous MOSFET, and Schottky diode
- Integrated current sense amplifier for superior current sense accuracy and signal-to-noise ratio
- Body-Braking® load transient support to reduce output capacitors
- Diode-emulation high efficiency mode to increase light-load efficiency
- Compatible with 3.3V PWM logic and VCC tolerant
- Compliant with Intel DrMOS V4.0
- PCB footprint compatible with IR3551 and IR3553
- Efficient dual-sided cooling and small 6mm x 6mm x 0.9mm PQFN package
- Lead-free RoHS compliant package
Applications
- Voltage regulators for CPUs, GPUs, and DDR memory arrays
- High current, low profile DC-DC converters
- Server applications requiring high-efficiency power delivery
Q & A
- What is the maximum output current capability of the IR3550?
The IR3550 has an output current capability of 60A DC.
- What is the operating range of the input voltage (VIN) for the IR3550?
The input voltage (VIN) operating range is up to 15V.
- What is the maximum switching frequency of the IR3550?
The IR3550 can operate up to 1.0MHz switching frequency.
- Does the IR3550 have integrated current sense capabilities?
Yes, the IR3550 includes an integrated current sense amplifier.
- What is the thermal resistance (θJA) of the IR3550?
The thermal resistance (θJA) is 20.2 °C/W.
- Is the IR3550 compliant with any specific industry standards?
Yes, it is compliant with Intel DrMOS V4.0.
- What are the key features of the IR3550's package?
The IR3550 comes in a small 6mm x 6mm x 0.9mm PQFN package and is lead-free RoHS compliant.
- Can the IR3550 be used in high current applications?
Yes, the IR3550 is optimized for high current applications such as CPU, GPU, and DDR memory arrays.
- Does the IR3550 support Body-Braking® load transient?
Yes, the IR3550 features Body-Braking® load transient support to reduce output capacitors.
- Is the IR3550 compatible with other models in terms of PCB footprint?
Yes, the IR3550's PCB footprint is compatible with the IR3551 and IR3553.
