25 A continuous output — what it buys the power rail
The Infineon IR3447AMTRPBFAUMA2 is a synchronous step-down buck regulator from the OptiMOS™ series, delivering 25 A continuous output from a 2 V to 17 V input rail. That 25 A rating puts it squarely in the mid-current range for point-of-load converters — enough to power a small FPGA core, a multi-rail communications card, or a bank of DDR memory termination.
Switching at 600 kHz — inductor and capacitor sizing
Fixed 600 kHz switching frequency is a practical middle ground: high enough to keep the inductor below 2 µH (saving board area and DCR losses), yet low enough that switching losses in the integrated MOSFETs don't dominate at 25 A. Expect a 1 µH to 2.2 µH inductor in a typical design, with output capacitors in the 100 µF to 470 µF range depending on transient requirements. The synchronous rectifier helps maintain efficiency above 90% across most of the load range, which matters when the regulator is running near its 25 A ceiling in a confined enclosure.
The supplier device package is PG-VIQFN-29; board layout should follow Infineon's recommended footprint for the 5 mm × 6 mm body.