1500 µF bulk cap with 50 mOhm ESR — what that means for your rail
The TPSV158M004R0050: The 50 mOhm ESR is the figure that governs ripple current capability and self-heating: at 1500 µF and 4 V, the RC time constant is 75 µs, so it handles fast load transients from a nearby switching regulator without the output voltage dipping below the load's minimum.
Active lifecycle — no LTB clock ticking
Listed as Active — KYOCERA AVX continues to manufacture the TPSV158M004R0050, so there is no last-time-buy window to manage for current or near-term builds.