Key parametrics and what they mean for the BOM
The TPSV158M002R0040: At 1500 µF and 2.5 V rated voltage, this capacitor is sized for bulk decoupling on low-voltage rails — think 1.8 V or 1.2 V core supplies where the downstream regulator's output ripple needs a low-impedance sink. The 40 mOhm ESR (equivalent series resistance) is the figure that governs ripple current handling and self-heating; a lower ESR means less voltage ripple for a given ripple current, which matters when the capacitor sits near a switching regulator output. Operating temperature range of -55°C to 125°C covers industrial and automotive ambient conditions — the capacitor's capacitance and ESR shift with temperature, but the rated range guarantees function across cold start and under-hood heat.