What this buck-boost does and who specs it
The TPS63807YFFR is a single-output, adjustable buck-boost regulator from Texas Instruments that steps voltage up or down from a 1.3 V to 5.5 V input rail. It switches at one of three programmable frequencies — 1.4 MHz, 1.6 MHz, or 2.1 MHz — letting the designer trade inductor size against efficiency and EMI profile without changing the bill of materials. The output is adjustable from 1.8 V up to 5.2 V, covering common logic and sensor rails; the part does not include a synchronous rectifier, so the external Schottky diode selection matters for efficiency at higher currents.
The 15-DSBGA package keeps the footprint tiny but demands a hot-air rework station and careful PCB land pattern; this is not a hand-solder field swap, but it fits where board space is the constraint.
Texas Instruments is the sole source; no direct pin-compatible second source is listed.