{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TLV431BQLPR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TLV431BQLPR","canonicalUrl":"https://icboms.com/texas-instruments/TLV431BQLPR","factsUrl":"https://icboms.com/api/mcp/products/TLV431BQLPR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TLV431BQLPR, adjustable shunt voltage reference, ±0.5% tolerance, 1.24V to 6V output, 15 mA output, 100 µA cathode current, TO-92-3 package, -40°C to 125°C.","salesMarkdown":"## Shunt reference with ±0.5% tolerance for precision feedback loops Its key differentiator from the standard TL431 is the ±0.5% reference tolerance, which tightens the output voltage window in an isolated power supply or a linear regulator feedback divider. ## Cathode current and output drive — sizing the bias resistor The shunt requires a minimum cathode current of 100 µA to maintain regulation — below that the reference output drifts outside the ±0.5% window. The 15 mA output current rating sets the maximum sink capability through the cathode, which is the limit for driving an optocoupler LED in a feedback loop or for pulling down the feedback node in a series regulator. ## Temperature grade and package — board-level fit The TO-92-3 package (TO-226AA) is a through-hole form factor with formed leads, intended for manual assembly or wave-solder processes.","metaTitle":"TLV431BQLPR Shunt Voltage Reference, ±0.5% Tolerance","metaDescription":"Texas Instruments TLV431BQLPR adjustable shunt voltage reference. ±0.5% tolerance, 1.24V to 6V output, 15 mA output, -40°C to 125°C. Active production.","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":"±0.5%","Output Type":"Adjustable","Mounting Type":"Through Hole","Package / Case":"TO-226-3, TO-92-3 (TO-226AA) Formed Leads","Product Status":"Active","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":"TO-92-3","Temperature Coefficient":"-","Voltage - Output (Min/Fixed)":"1.24V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.4845","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/4de43c4ff3ead6fd17ae3f61f4aa48c4.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TLV431BQLPR/alternatives.json"},"ai":{"faq":[{"question":"What is the tolerance of TLV431BQLPR?","answer":"The reference tolerance is ±0.5%, which is tighter than the standard TL431's typical 1% or 2% grades. This makes it suitable for applications requiring a tighter output voltage window, such as precision power supplies or data converters."},{"question":"How does TLV431BQLPR compare to TL431?","answer":"The TLV431BQLPR is a lower-voltage variant of the TL431 family — its maximum output voltage is 6 V compared to the TL431's 36 V. The ±0.5% tolerance is tighter than the standard TL431's 1% or 2% grades. The pinout and basic shunt-reference function are the same, but the TLV431 is designed for lower-voltage rails."},{"question":"What is the typical application of TLV431BQLPR?","answer":"This shunt reference is used as a precision voltage reference in isolated switch-mode power supplies, linear regulators, and monitoring circuits. The adjustable output and tight tolerance suit it for feedback loops in AC-DC converters, battery chargers, and industrial power modules."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TLV431BQLPR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TLV431BQLPR 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}}