ST-Programmable-Voltage-Reference-TL431CZ-ST-TL431CZ-p-The-TL431CZ-is-a-programmable-shunt-voltage-reference-with-guaranteed-temperature-stability-over-the-entire-temperature-range-of-operation-The-output-voltage-may-be-set-to-any-value-between-2-5-&-36V-with-two-external-resistors-p-ST-Tl 431CZ-Voltage-Reference-TO92