Shunt reference with adjustable output and tight tolerance
Texas Instruments TLVH431BQDBVT is an adjustable shunt voltage reference in a SOT-23-5 package, delivering a 1.24 V minimum output up to 18 V maximum with ±0.5% tolerance. The shunt topology sinks up to 70 mA output current while requiring a minimum 100 µA cathode current to maintain regulation. Operating across -40°C to 125°C, this reference suits industrial and automotive environments where the board sees wide ambient swings. The adjustable output lets one BOM position cover multiple rail voltages by changing only the external resistor divider.
Package and board-fit for SOT-23-5
The SC-74A / SOT-753 case outline matches the standard SOT-23-5 land pattern — a 0.95 mm pitch with 0.60 mm pad width on the 5-pin body. The surface-mount footprint shares the same PCB layout as the broader TLVH431 family, so a board already designed for the SOT-23-5 variant accepts this part without a spin. The RoHS3 compliance confirms no restricted substances above threshold — no conflict with EU or global assembly directives.
No official successor or cross-reference is published — the part is the current offering in the TLVH431BQ series. For a BOM already qualified on this order code, no migration planning is needed at this lifecycle stage.