{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TLV431AIDBZR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TLV431AIDBZR","canonicalUrl":"https://icboms.com/texas-instruments/TLV431AIDBZR","factsUrl":"https://icboms.com/api/mcp/products/TLV431AIDBZR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TLV431AIDBZR adjustable shunt voltage reference, ±1% tolerance, 1.24V to 6V output, 15 mA output, 80 µA cathode current, SOT-23-3, -40°C to 85°C.","salesMarkdown":"## Adjustable shunt reference in SOT-23-3 It is the low-voltage sibling of the industry-standard TL431, operating with a minimum cathode current of 80 µA — roughly one-tenth the TL431's requirement — which makes it suitable for battery-powered and low-quiescent bias circuits. The ±1% tolerance on the reference voltage suits precision power-supply feedback loops, voltage monitors, and isolated secondary-side regulation in telecom and industrial power converters. ## Output current and cathode current limits The shunt can sink up to 15 mA of continuous cathode current. This sets the upper bound for the series resistor value in a given supply rail — for a 5 V rail with a 1.24 V reference, the resistor must drop 3.76 V at 15 mA, so the minimum resistor is 250 Ω. The 80 µA minimum cathode current ensures the device stays in its linear region even at light load; below that threshold the reference voltage drifts outside the ±1% window. The SOT-23-3 package (TO-236-3 / SC-59 compatible) occupies minimal board area and is a direct footprint match for the TL431 in the same package, easing a drop-in swap where the lower cathode current is needed.","metaTitle":"TLV431AIDBZR Shunt Reference, ±1%, SOT-23-3, Active","metaDescription":"Texas Instruments TLV431AIDBZR adjustable shunt voltage reference, ±1% tolerance, 15 mA output, SOT-23-3.","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":"-40°C~85°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/TLV431AIDBZR/alternatives.json"},"ai":{"faq":[{"question":"Is TLV431AIDBZR equivalent to TL431?","answer":"The TLV431 is the low-voltage, low-cathode-current variant of the TL431. Both are adjustable shunt references, but the TLV431 operates from 1.24 V (vs the TL431's 2.5 V) and requires only 80 µA minimum cathode current (vs the TL431's ~1 mA). The pinout is the same in the SOT-23-3 package, so it can replace a TL431 in circuits where the lower reference voltage and lower bias current are acceptable."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TLV431AIDBZR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TLV431AIDBZR 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}}