{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM4128AQ1MF3.0/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM4128AQ1MF3.0-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LM4128AQ1MF3.0-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LM4128AQ1MF3.0%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Automotive, AEC-Q100 series voltage reference, LM4128AQ1MF3.0/NOPB, fixed 3V output, ±0.1% tolerance, 75ppm/°C, SOT-23-5, surface mount, bulk.","salesMarkdown":"## Package and board-fit for a precision reference The LM4128AQ1MF3.0/NOPB comes in a SOT-23-5 package (SC-74A, SOT-753), surface-mount, 5 pins. That footprint is common enough that it swaps in with standard tweezers and a soldering iron — no hot-air station required for a field repair, as long as you have the pad layout right. It is a series voltage reference, fixed 3V output, with ±0.1% initial tolerance and a 75ppm/°C temperature coefficient. Input voltage range is 3.4V to 5.5V — it needs at least 400 mV headroom above the 3V output to regulate. Drop it on a 3.3V rail and you have 300 mV of margin; on a 5V rail, plenty of room. Output current is 20 mA maximum. That is enough to bias a handful of ADC inputs or an op-amp front end, but not to power a whole sensor array — budget the load current against the 100 µA supply current the reference itself draws. For a 3V reference feeding a 16-bit ADC with a 5V span, that noise contribution is about 0.3 LSB — clean enough for most industrial and automotive signal chains without an external filter cap. ## Automotive grade and temperature reach The 75ppm/°C drift is specified across that whole band, so the output does not wander when the ECU heat-soaks after a hot soak.","metaTitle":"LM4128AQ1MF3.0/NOPB Texas Instruments Series Reference","metaDescription":"Texas Instruments LM4128AQ1MF3.0/NOPB precision series voltage reference, 3V fixed output, ±0.1% tolerance, 75ppm/°C drift, SOT-23-5, AEC-Q100 automotive grade.","metaKeywords":null},"attributes":{"series":"Automotive, AEC-Q100","packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Series":"Automotive, AEC-Q100","Package":"Bulk","Tolerance":"±0.1%","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"SC-74A, SOT-753","Reference Type":"Series","Voltage - Input":"3.4V ~ 5.5V","lifecycle_stage":"eol_hot","Current - Output":"20 mA","Current - Supply":"100µA","Noise - 0.1Hz to 10Hz":"285µVp-p","Operating Temperature":"-40°C ~ 125°C (TJ)","Supplier Device Package":"SOT-23-5","Temperature Coefficient":"75ppm/°C","Voltage - Output (Min/Fixed)":"3V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.45","stockQuantity":0,"priceTiers":[{"qty":123,"price":"$2.45000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/245890f800c40b793226c810f1bf8e57.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is LM4128AQ1MF3.0/NOPB a direct drop-in for LM4132AMF-4.1/NOPB?","answer":"No — the LM4132AMF-4.1/NOPB outputs 4.096V with ±0.05% tolerance and 20ppm/°C drift, while the LM4128AQ1MF3.0/NOPB outputs 3V with ±0.1% tolerance and 75ppm/°C drift. Both are series references in SOT-23-5, but the output voltage and precision are different. They are not pin-compatible substitutes without a board spin."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM4128AQ1MF3.0-NOPB","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM4128AQ1MF3.0-NOPB 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}}