Low-ESR bulk decoupling for 3.3 V and 1.8 V rails
The TPSY227K004R0075: That ESR figure is the key number for a decoupling application — it determines how much ripple current the cap can handle before self-heating becomes a problem, and it sets the impedance knee on the power rail.
Temperature range and board-fit realities
The 2917 (7343 Metric) package with the Y size code is a standard footprint — the same pad layout serves the 220 µF / 4 V rating across multiple TPS series variants, so a last-minute BOM swap to a different capacitance or voltage in the same case size does not require a board spin. The seated height of 2.00 mm keeps it under most low-profile clearance limits on a typical 1.6 mm PCB.