680 µF bulk decoupling at 2.5 V with 50 mOhm ESR
The TPSE687K002R0050: The 50 mOhm equivalent series resistance (ESR) is the key figure for a bulk decoupling cap — it governs the ripple current the part can handle and the transient voltage step when the load current changes. For a 2.5 V rail powering a core logic or memory supply, this ESR keeps the voltage droop within tolerance during a load step.
Package and temperature grade
The surface-mount footprint is common across the TPS series, so a single PCB layout can accommodate multiple capacitance values within the same case code. Operating from -55°C to 125°C, it covers the full industrial temperature range and the underhood automotive band — the molded construction keeps the electrolyte sealed across the temperature sweep.