What this TPS tantalum capacitor does in the circuit
The TPSB227K002R0150: This is a molded tantalum capacitor from KYOCERA AVX's TPS series, rated 220 µF at 2.5 V with a ±10% tolerance. A 150 mOhm ESR at 220 µF means this cap can handle moderate ripple without cooking itself, typical for output filtering on a 2.5 V logic rail. The 1411 (3528 Metric) B case footprint is the standard size for this capacitance and voltage rating in the TPS family.
No second-source or pin-compatible equivalent is listed; the TPS series is the OEM's own general-purpose molded tantalum line. Availability is confirmed at RFQ time.
