{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM4128CMF-1.8/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM4128CMF-1.8-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LM4128CMF-1.8-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LM4128CMF-1.8%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM4128CMF-1.8/NOPB series voltage reference, fixed 1.8V output, ±0.5% tolerance, 20 mA output, 100µA supply, SOT-23-5, tape and reel.","salesMarkdown":"## 1.8V fixed output, 0.5% initial tolerance — the SOT-23-5 reference for precision bias rails The LM4128CMF-1.8/NOPB is a series voltage reference from Texas Instruments that delivers a fixed 1.8V output with ±0.5% initial tolerance. It operates from a 2.2V to 5.5V input rail and can source up to 20 mA to the load. ## Industrial temperature range and low drift — stable across the board For a 1.8V output, that translates to roughly 180 µV of drift per degree — the dominant error term in a precision ADC front-end after the initial tolerance is trimmed out. The series architecture means the output capacitor is stable with any value from 0.1 µF to 10 µF, and the reference does not require an external resistor to set the output — the fixed-voltage variant simplifies the BOM to one bypass cap. ## SOT-23-5 footprint — board integration and sourcing Housed in a 5-pin SOT-23 (SC-74A) package, the LM4128CMF-1.8/NOPB occupies roughly 3 mm × 3 mm of board area. The small footprint and surface-mount assembly suit compact mixed-signal designs where a reference must sit close to the converter without routing a long analog trace.","metaTitle":"LM4128CMF-1.8/NOPB Texas Instruments Series Voltage","metaDescription":"Texas Instruments LM4128CMF-1.8/NOPB series voltage reference, fixed 1.8V output, ±0.5% tolerance, 100µA supply current, SOT-23-5. Active, RoHS3 compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Tolerance":"±0.5%","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"SC-74A, SOT-753","Reference Type":"Series","Voltage - Input":"2.2V ~ 5.5V","lifecycle_stage":"eol_hot","Current - Output":"20 mA","Current - Supply":"100µA","Noise - 0.1Hz to 10Hz":"170µVp-p","Operating Temperature":"-40°C ~ 125°C (TJ)","Supplier Device Package":"SOT-23-5","Temperature Coefficient":"100ppm/°C","Voltage - Output (Min/Fixed)":"1.8V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.03","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$3.03000","currency":"USD"},{"qty":10,"price":"$2.72500","currency":"USD"},{"qty":25,"price":"$2.57040","currency":"USD"},{"qty":100,"price":"$2.19010","currency":"USD"},{"qty":250,"price":"$2.05640","currency":"USD"},{"qty":500,"price":"$1.79936","currency":"USD"},{"qty":1000,"price":"$1.34180","currency":"USD"},{"qty":2000,"price":"$1.30950","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/d0a8321878fcc5289c7be83212ba7ad8.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the output tolerance and temperature drift of this reference?","answer":"The initial output tolerance is ±0.5% at 1.8V fixed."},{"question":"What package does the LM4128CMF-1.8/NOPB come in?","answer":"It is supplied in a 5-pin SOT-23 package (SC-74A, also designated SOT-23-5). The supplier device package is SOT-23-5."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM4128CMF-1.8-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/LM4128CMF-1.8-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}}