{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TLV431ACDBZR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TLV431ACDBZR","canonicalUrl":"https://icboms.com/texas-instruments/TLV431ACDBZR","factsUrl":"https://icboms.com/api/mcp/products/TLV431ACDBZR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TLV431ACDBZR, adjustable shunt voltage reference, 1.24V min output, 6V max, ±1% tolerance, 15 mA output, 80 µA cathode current, SOT-23-3, 0°C to 70°C.","salesMarkdown":"## 1.24 V minimum reference — sets the regulation floor That 1.24 V threshold is the lowest regulated voltage you can set with the external resistor divider — below that the device stops regulating and behaves like a diode. Output is adjustable via two external resistors, giving flexibility to set any reference between 1.24 V and 6 V. The ±1% tolerance on the internal reference keeps the set point tight across temperature and lot variation, which matters when the reference feeds an ADC or comparator threshold. ## 15 mA output and 80 µA cathode — sizing the bias resistor The device can sink up to 15 mA continuous, which sets the upper limit for the load you can regulate. The minimum cathode current is 80 µA — below that the shunt loses regulation. When you size the bias resistor from the supply rail, you need to ensure the current through the TLV431 stays between 80 µA and 15 mA over all load and supply conditions. ## SOT-23-3 footprint — board area and thermal note The TLV431ACDBZR comes in a SOT-23-3 package, which is a three-lead surface-mount package occupying roughly 3 mm × 1.5 mm of board area. The small footprint suits dense designs, but the thermal dissipation is limited — at 15 mA output and a few volts of cathode-to-anode drop, the power is under 100 mW, so no special thermal management is needed for most indoor applications. ## Commercial temperature grade — indoor and office equipment It fits power supplies, battery chargers, and voltage monitoring circuits in consumer electronics, office equipment, and appliance PCBs. Not specified for automotive or extended industrial environments.","metaTitle":"TLV431ACDBZR Adjustable Shunt Regulator, 1.24V Ref, ±1%","metaDescription":"TLV431ACDBZR adjustable shunt voltage reference from TI. Output to 6V, 15mA cathode current, ±1% tolerance. SOT-23-3 package.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Mfr":"Texas Instruments","Series":"-","Package":"Tape & Reel (TR); Cut Tape (CT)","Tolerance":"±1%","Output Type":"Adjustable","Mounting Type":"Surface Mount","Package / Case":"TO-236-3, SC-59, SOT-23-3","Product Status":"Active","Reference Type":"Shunt","Voltage - Input":"-","lifecycle_stage":"eol_hot","Current - Output":"15 mA","Current - Supply":"-","Current - Cathode":"80 µA","Base Product Number":"TLV431","Noise - 0.1Hz to 10Hz":"-","Noise - 10Hz to 10kHz":"-","Operating Temperature":"0°C~70°C(TA)","Voltage - Output (Max)":"6 V","Supplier Device Package":"SOT-23-3","Temperature Coefficient":"-","Voltage - Output (Min/Fixed)":"1.24V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.7600","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/4de43c4ff3ead6fd17ae3f61f4aa48c4.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TLV431ACDBZR/alternatives.json"},"ai":{"faq":[{"question":"Is TLV431ACDBZR compatible with TL431?","answer":"The TLV431 is a low-voltage variant of the classic TL431. Both are adjustable shunt references with similar pinouts, but the TLV431 has a 1.24 V minimum reference versus the TL431's 2.5 V. They are not drop-in replacements unless your circuit is designed for the lower reference voltage."},{"question":"What is the tolerance of TLV431ACDBZR?","answer":"The TLV431ACDBZR has a ±1% tolerance on the internal reference voltage. This is the 'A' grade in the TLV431 family — tighter than the standard ±1.5% grade."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TLV431ACDBZR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TLV431ACDBZR when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T18:03:28.771Z","lastPublished":"2026-07-22T18:03:28.771Z","indexable":true}}