TIDUF68 February 2024
For the 3.3V rail, a power module TPSM82821 with 2mm × 2.5mm super small package meets the 600mA output current requirement. The power modules integrate a synchronous step-down converter and an inductor to simplify design, reduce external components, and save PCB area.
The jumper J8 also keeps the flexibility for an external 3.3V power supply in the board. When R48 is populated, the resistor provides the 3.3V rail from the GaN board to the C2000 MCU LaunchPad development kit.