Typical applications include low-voltage power supplies, polarity protection, and freewheeling diodes in DC-DC converters where the Schottky's low forward voltage drop keeps conduction losses manageable.
Forward drop and leakage — the trade-off at 80 V
Forward voltage is specified at 880 mV maximum at 10 A — typical for an 80 V Schottky in this current class. Reverse leakage at 80 V is 15 µA, a figure that rises with junction temperature; at the 175 °C ceiling leakage can dominate the thermal budget if the copper pad area under the DPAK tab is undersized. The fast recovery speed (<= 500 ns, > 200 mA) confirms this is a switching-grade Schottky, not a line-frequency rectifier.
STMicroelectronics lists the STPS20LCD80CB-TR as obsolete. For BOM lines still specifying this part, procurement relies on independent-distribution inventory — date-code and lot traceability should be confirmed at quote time.