{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ATL431LIBQDQNR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"ATL431LIBQDQNR","canonicalUrl":"https://icboms.com/texas-instruments/ATL431LIBQDQNR","factsUrl":"https://icboms.com/api/mcp/products/ATL431LIBQDQNR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments ATL431LIBQDQNR, adjustable shunt voltage reference, ±0.5% tolerance, 80 µA min cathode current, 36 V max output, -40°C to 125°C, 4-X2SON (1x1 mm) package, surface mount, ROHS3 compliant.","salesMarkdown":"## Adjustable shunt reference with tight tolerance The Texas Instruments ATL431LIBQDQNR is an adjustable shunt voltage reference that regulates down to 2.5 V and up to 36 V, with a ±0.5% tolerance. The 80 µA minimum cathode current lets it operate from a very low bias — useful in battery-powered loops where every microamp is budgeted. It comes in a 4-X2SON package measuring 1x1 mm, which fits into compact sensor modules or multi-channel data-acquisition boards where board area is tight. The 80 µA minimum cathode current is the lowest bias required to keep the shunt regulating. Dropping to 80 µA saves nearly a millamp per reference. For a design with multiple reference nodes — say, a multi-channel ADC front-end — that adds up to real power savings. The trade-off is that the output impedance is higher at very low bias, so the load regulation spec should be checked against the application's current draw. For a fixed load like biasing an op-amp input stage, the 80 µA floor is easy to satisfy with a single resistor to the supply rail. The ROHS3 compliance is current — no exemption expiration to track. ## Package: 4-X2SON (1x1 mm) — footprint and assembly The 4-X2SON package (supplier device package 4-X2SON 1x1) has four leads on a 1x1 mm body with an exposed pad underneath for thermal dissipation. It is a surface-mount package designed for reflow soldering. The small footprint means the reference can sit close to the load — an ADC reference input or a comparator threshold divider — without long traces that pick up noise.","metaTitle":"ATL431LIBQDQNR Shunt Voltage Reference, 0.5% Tolerance","metaDescription":"TI ATL431LIBQDQNR adjustable shunt reference, ±0.5% tolerance, 80 µA min cathode current, 36 V max output, -40 to 125°C, 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~125°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":"$0.7200","priceTiers":[{"qty":1,"price":"$0.72000","currency":"USD"},{"qty":10,"price":"$0.63700","currency":"USD"},{"qty":25,"price":"$0.59800","currency":"USD"},{"qty":100,"price":"$0.48810","currency":"USD"},{"qty":250,"price":"$0.45336","currency":"USD"},{"qty":500,"price":"$0.38584","currency":"USD"},{"qty":1000,"price":"$0.30867","currency":"USD"},{"qty":3000,"price":"$0.20866","currency":"USD"},{"qty":6000,"price":"$0.19520","currency":"USD"},{"qty":15000,"price":"$0.19050","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/01036f6b90e1bdae2ec431511e354e53.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/ATL431LIBQDQNR/alternatives.json"},"ai":{"faq":[{"question":"What is the minimum cathode current of ATL431LIBQDQNR?","answer":"The minimum cathode current is 80 µA. This is the lowest bias current needed to keep the shunt regulating — significantly lower than the 1 mA typical of a standard TL431."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/ATL431LIBQDQNR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/ATL431LIBQDQNR 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}}