{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TLV431BQPK","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TLV431BQPK","canonicalUrl":"https://icboms.com/texas-instruments/TLV431BQPK","factsUrl":"https://icboms.com/api/mcp/products/TLV431BQPK","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TLV431BQPK adjustable shunt voltage reference, ±0.5% tolerance, 1.24 V to 6 V output, 15 mA output, 100 µA cathode current, SOT-89-3 package, -40°C to 125°C.","salesMarkdown":"## Shunt reference with ±0.5% tolerance It delivers a regulated output from 1.24 V up to 6 V, set by two external resistors. The ±0.5% tolerance is the headline spec — it holds the reference voltage tighter than the standard TL431's 1% grade, which matters when the ADC reference or comparator threshold has no post-trim. ## Output drive and cathode current floor Rated for 15 mA continuous output current and a minimum cathode current of 100 µA. The 100 µA floor means the device always draws enough bias to stay in regulation — below that the output drifts. In practice, size the bias resistor so the cathode current stays above 100 µA across the full load range, including the no-load condition. The SOT-89-3 package (TO-243AA) has a large collector tab that conducts heat to the PCB copper — the thermal resistance depends on the pad area under the tab, not just the air flow.","metaTitle":"TLV431BQPK Shunt Voltage Reference, ±0.5% Tolerance","metaDescription":"Texas Instruments TLV431BQPK adjustable shunt reference, ±0.5% tolerance, 1.24 V to 6 V output, 15 mA output, SOT-89-3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Series":"-","Packaging":"Tape & Reel (TR) Cut Tape (CT)","Tolerance":"±0.5%","Output Type":"Adjustable","Part Status":"Active","Manufacturer":"Texas Instruments","Mounting Type":"Surface Mount","Package / Case":"TO-243AA","Reference Type":"Shunt","Voltage - Input":"-","lifecycle_stage":"eol_hot","Current - Output":"15 mA","Current - Supply":"-","Current - Cathode":"100 µA","Base Product Number":"TLV431","Noise - 0.1Hz to 10Hz":"-","Noise - 10Hz to 10kHz":"-","Operating Temperature":"-40°C ~ 125°C (TA)","Voltage - Output (Max)":"6 V","Supplier Device Package":"SOT-89-3","Temperature Coefficient":"-","Voltage - Output (Min/Fixed)":"1.24V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.7700","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/4de43c4ff3ead6fd17ae3f61f4aa48c4.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TLV431BQPK/alternatives.json"},"ai":{"faq":[{"question":"What is the tolerance of TLV431BQPK?","answer":"The TLV431BQPK is specified with ±0.5% tolerance on the reference voltage. This is tighter than the standard TL431's 1% grade and suits precision bias or ADC reference applications."},{"question":"Can TLV431BQPK replace TL431?","answer":"The TLV431BQPK is pin-compatible with the standard TL431 in the same SOT-89-3 footprint and shares the same adjustable shunt reference function. The key difference is the ±0.5% tolerance versus the TL431's typical 1% grade, so it can drop in where tighter output accuracy is needed."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TLV431BQPK","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TLV431BQPK 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}}