{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ATL431LIBIDQNR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"ATL431LIBIDQNR","canonicalUrl":"https://icboms.com/texas-instruments/ATL431LIBIDQNR","factsUrl":"https://icboms.com/api/mcp/products/ATL431LIBIDQNR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments ATL431LIBIDQNR adjustable shunt voltage reference, ±0.5% tolerance, 15 mA output current, 80 µA cathode current, 4-X2SON (1x1 mm) package, surface mount, -40°C to 85°C.","salesMarkdown":"## Tighter tolerance than the standard TL431 The ATL431LIBIDQNR is an adjustable shunt voltage reference from Texas Instruments, part of the ATL431 family. Its ±0.5% tolerance is a significant step up from the ±2.2% of the widely used TL431IDBVR — meaning the output voltage stays closer to the programmed value over temperature and load, without external trimming. Minimum cathode current is just 80 µA, so the reference can be biased with a single high-value resistor in low-power loops — a common need in battery-monitor or energy-harvesting circuits where every microamp counts. Housed in a 4-X2SON (1x1 mm) package with an exposed pad — the 4-XDFN footprint is tiny, about a third the area of a SOT-23. This wide compliance range lets the reference sit directly on a 24 V industrial bus or a 12 V automotive rail without an additional regulator. ## Active lifecycle — no end-of-life risk ROHS3 compliant, which covers all six original RoHS substances plus the four phthalates. No additional compliance documentation (REACH, UL, IEC) is cited in the listing.","metaTitle":"TI ATL431LIBIDQNR Shunt Reference, 0.5% Tolerance, 4-X2SON","metaDescription":"Texas Instruments ATL431LIBIDQNR adjustable shunt voltage reference, ±0.5% tolerance, 80 µA cathode current, 4-X2SON package.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","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":"Surface Mount","Package / Case":"4-XDFN Exposed Pad","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":"ATL431","Noise - 0.1Hz to 10Hz":"-","Noise - 10Hz to 10kHz":"-","Operating Temperature":"-40°C ~ 85°C (TA)","Voltage - Output (Max)":"36 V","Supplier Device Package":"4-X2SON (1x1)","Temperature Coefficient":"-","Voltage - Output (Min/Fixed)":"2.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.6200","priceTiers":[{"qty":1,"price":"$0.62000","currency":"USD"},{"qty":10,"price":"$0.54300","currency":"USD"},{"qty":25,"price":"$0.51040","currency":"USD"},{"qty":100,"price":"$0.41650","currency":"USD"},{"qty":250,"price":"$0.38688","currency":"USD"},{"qty":500,"price":"$0.32926","currency":"USD"},{"qty":1000,"price":"$0.26341","currency":"USD"},{"qty":3000,"price":"$0.13165","currency":"USD"},{"qty":6000,"price":"$0.12368","currency":"USD"},{"qty":15000,"price":"$0.11570","currency":"USD"},{"qty":30000,"price":"$0.10612","currency":"USD"},{"qty":75000,"price":"$0.10213","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/01036f6b90e1bdae2ec431511e354e53.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/ATL431LIBIDQNR/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional second-source to ATL431LIBIDQNR?","answer":"The TL431IDBVR is the closest functional second-source — same adjustable shunt topology, same 4-XDFN package option, and same operating temperature range. The key difference is tolerance: the ATL431LIBIDQNR is ±0.5%, while the TL431IDBVR is ±2.2%. If the BOM can tolerate the wider tolerance, the TL431IDBVR is a drop-in replacement without layout changes."},{"question":"Will ATL431LIBIDQNR drop into a board originally designed for TL431IDBVR?","answer":"Yes — both parts share the same 4-XDFN package footprint and pinout (adjustable shunt reference). The TL431IDBVR is listed with a ±2.2% tolerance versus the ATL431LIBIDQNR's ±0.5%, but the electrical interface is identical. No rewiring or board spin is required."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/ATL431LIBIDQNR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/ATL431LIBIDQNR when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}