The TPS63811YFFR: The output is adjustable and positive-configuration; no synchronous rectifier is integrated, so the external Schottky diode selection matters for efficiency at higher frequencies.
Switching frequency and inductor choice
Three switching frequency options — 1.6 MHz, 2 MHz, and 2.6 MHz — let the designer trade off inductor size against switching losses.
It is not a hand-solder part.
