Buck converter parametric fit — 6 A, 350 kHz, 3-6 V input rail
The TPS54672PWPR is a single-output step-down (buck) DC-DC converter from Texas Instruments' SWIFT™ series, rated for 6 A continuous output current. With an integrated synchronous rectifier, external Schottky catch diode is eliminated, reducing BOM count and improving efficiency at moderate to full load.
Thermal and package constraints — 28-HTSSOP with exposed pad
Switching at 350 kHz, the converter keeps the inductor in the 4.7-10 µH range typical for 6 A designs — the layout must minimise the high-dI/dt loop from the input capacitor through the high-side FET to the switch node.