{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"REF3033AIDBZRQ1","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"REF3033AIDBZRQ1","canonicalUrl":"https://icboms.com/texas-instruments/REF3033AIDBZRQ1","factsUrl":"https://icboms.com/api/mcp/products/REF3033AIDBZRQ1","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments REF3033AIDBZRQ1, Automotive AEC-Q100 series voltage reference, fixed 3.3 V output, ±0.2% initial accuracy, 75 ppm/°C drift, 25 mA output, SOT-23-3 package.","salesMarkdown":"## Output drive and noise floor — what 25 mA and 36 µVp-p mean for the rail The 25 mA output current capability lets this reference directly bias multiple ADC reference inputs or a small sensor bridge without an external buffer. The 36 µVp-p noise (0.1 Hz to 10 Hz) and 105 µVrms noise (10 Hz to 10 kHz) define the cleanest rail the reference can provide — for a 3.3 V rail, that's roughly 11 ppm of peak-to-peak low-frequency noise, which is low enough for 12-bit to 14-bit conversion without additional filtering in most automotive signal chains. ## NRND — plan the last-time-buy window This means TI will continue manufacturing for existing customers through a last-time-buy window, but new designs should not commit to this order code. For a production BOM already qualified on this part, the procurement action is to estimate remaining lifetime demand and secure the LTB quantity before the final order cutoff. ## SOT-23-3 footprint and supply range The SOT-23-3 package (TO-236-3, SC-59 variant) is a three-pin surface-mount footprint common for small-signal devices — the same land pattern as a standard SOT-23 BJT or diode. The input supply range is 3.35 V to 5.5 V, which means the reference needs at least 50 mV of headroom above the 3.3 V output to regulate. Supply current is 50 µA typical, so the thermal load in the SOT-23-3 is negligible even at full 25 mA output.","metaTitle":"Texas Instruments REF3033AIDBZRQ1 Series Voltage Reference","metaDescription":"Texas Instruments REF3033AIDBZRQ1 automotive series voltage reference, fixed 3.3 V output, ±0.2% tolerance, 75 ppm/°C drift, 25 mA output, SOT-23-3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"NRND","categoryPath":["Analog & Data Acquisition"],"specifications":{"Mfr":"Texas Instruments","Series":"Automotive, AEC-Q100","Package":"Tape & Reel (TR); Cut Tape (CT)","Tolerance":"±0.2%","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"TO-236-3, SC-59, SOT-23-3","Product Status":"Not For New Designs","Reference Type":"Series","Voltage - Input":"3.35V ~ 5.5V","lifecycle_stage":"eol_hot","Current - Output":"25 mA","Current - Supply":"50µA","Base Product Number":"REF3033","Noise - 0.1Hz to 10Hz":"36µVp-p","Noise - 10Hz to 10kHz":"105µVrms","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"SOT-23-3","Temperature Coefficient":"75ppm/°C","Voltage - Output (Min/Fixed)":"3.3V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$9.0100","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/17a87f45a9b6cb02aa65a39504f56b72.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/REF3033AIDBZRQ1/alternatives.json"},"ai":{"faq":[{"question":"Is REF3033AIDBZRQ1 obsolete or NRND?","answer":"It is not fully discontinued, but TI is not accepting new-design registrations for this order code. Existing production BOMs should plan a last-time-buy for remaining lifetime demand."},{"question":"What is the replacement for REF3033AIDBZRQ1?","answer":"No official direct-replacement order code is listed on the NRND notice. The commercial-grade REF3033AIDBZT uses the same die and is pin-compatible, but it lacks the AEC-Q100 automotive qualification. For automotive applications, evaluate the broader REF30xx automotive series or contact TI for a formal cross-reference."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/REF3033AIDBZRQ1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/REF3033AIDBZRQ1 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}}