{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TLV431BQLPE3","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TLV431BQLPE3","canonicalUrl":"https://icboms.com/texas-instruments/TLV431BQLPE3","factsUrl":"https://icboms.com/api/mcp/products/TLV431BQLPE3","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TLV431BQLPE3 adjustable shunt voltage reference, ±0.5% tolerance, 1.24 V to 6 V output, 15 mA output current, TO-92-3 through-hole package, active lifecycle.","salesMarkdown":"## ±0.5% shunt reference in a TO-92 body It delivers a reference voltage adjustable from 1.24 V up to 6 V with a guaranteed tolerance of ±0.5% — tight enough for most low-cost power supply feedback loops and bias circuits. The shunt topology means it behaves like a programmable Zener: you set the output voltage with two external resistors, and the part sinks current from the cathode to ground to regulate. Maximum cathode current is 15 mA, with a minimum operating current of 100 µA. Packaged in a through-hole TO-92-3 body, it is a direct fit for breadboards, prototype runs, and rework — no hot-air or reflow profile needed. The base product number is TLV431, so the datasheet and application notes for the family apply directly. The ±0.5% tolerance is the initial accuracy at 25 °C. For a 2.5 V set point, that is ±12.5 mV — acceptable for a generic bias rail or a comparator threshold, but not for a precision ADC reference without trimming. If you need a fixed 2.5 V reference, the TL431 family offers a 2.5 V fixed version, but the TLV431BQLPE3 gives you the flexibility to dial in any voltage in that window with two resistors. The shunt architecture requires a cathode resistor from the supply to the cathode pin. The resistor value is calculated from (V_supply - V_ref) / I_cathode, where I_cathode must stay between 100 µA and 15 mA. This is standard shunt-reference design — nothing exotic, but easy to overlook in a first pass. This is a through-hole part in a TO-92 package with the same pinout and shunt topology.","metaTitle":"TLV431BQLPE3 Shunt Reference, ±0.5%","metaDescription":"Texas Instruments TLV431BQLPE3 adjustable shunt voltage reference. ±0.5% tolerance, 1.24 V min output, 15 mA cathode current. TO-92 package. Active lifecycle.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Mfr":"Texas Instruments","Series":"-","Package":"Bulk","Tolerance":"±0.5%","Output Type":"Adjustable","Mounting Type":"Through Hole","Package / Case":"TO-226-3, TO-92-3 (TO-226AA)","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":"-","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":"$0.4800","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/4de43c4ff3ead6fd17ae3f61f4aa48c4.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TLV431BQLPE3/alternatives.json"},"ai":{"faq":[{"question":"What is the difference between TLV431BQLPE3 and the standard TL431?","answer":"The TLV431BQLPE3 is a tighter-tolerance version of the TL431. The standard TL431 is typically specified at ±1% or ±2% initial accuracy, while the TLV431BQLPE3 is rated at ±0.5%. Both are adjustable shunt references with the same pinout and the same 1.24 V to 6 V output range, so the TLV431BQLPE3 is a drop-in upgrade where the extra accuracy is needed. The package and pin assignment are identical."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TLV431BQLPE3","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TLV431BQLPE3 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}}