{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3423Q1MHX/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3423Q1MHX-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LM3423Q1MHX-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LM3423Q1MHX%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM3423Q1MHX/NOPB, Automotive AEC-Q100 DC DC Controller, 1-output, SEPIC/Buck/Boost, 2MHz, 4.5V-75V, Analog/PWM Dimming, 20-HTSSOP.","salesMarkdown":"## Topology flexibility and dimming control The LM3423Q1MHX/NOPB: This controller supports SEPIC, buck, and boost topologies — so one BOM position can serve a constant-current LED string whether the input rail is below, above, or overlapping the LED forward voltage. Dimming is handled by both analog and PWM methods — analog dimming adjusts the current sense threshold linearly, while PWM dimming switches the LED string at a duty cycle that preserves colour temperature.","metaTitle":"LM3423Q1MHX/NOPB DC DC Controller, Automotive AEC-Q100, 75V","metaDescription":"Texas Instruments LM3423Q1MHX/NOPB DC DC LED driver controller, AEC-Q100, 4.5V-75V input, 2MHz, SEPIC/Buck/Boost. Active, ROHS3. Quoted per RFQ.","metaKeywords":null},"attributes":{"series":"Automotive, AEC-Q100","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Type":"DC DC Controller","Series":"Automotive, AEC-Q100","Dimming":"Analog, PWM","Package":"Tape & Reel (TR); Cut Tape (CT)","Topology":"SEPIC, Step-Down (Buck), Step-Up (Boost)","Frequency":"2MHz","Mounting Type":"Surface Mount","Package / Case":"20-PowerTSSOP (0.173\\\", 4.40mm Width)","lifecycle_stage":"eol_hot","Number of Outputs":"1","Internal Switch(s)":"No","Operating Temperature":"-40°C ~ 125°C (TJ)","Voltage - Supply (Max)":"75V","Voltage - Supply (Min)":"4.5V","Supplier Device Package":"20-HTSSOP"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.93","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$2.93000","currency":"USD"},{"qty":10,"price":"$2.63400","currency":"USD"},{"qty":25,"price":"$2.49000","currency":"USD"},{"qty":100,"price":"$2.15790","currency":"USD"},{"qty":250,"price":"$2.04728","currency":"USD"},{"qty":500,"price":"$1.83702","currency":"USD"},{"qty":1000,"price":"$1.56600","currency":"USD"},{"qty":2500,"price":"$1.56600","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/1f4d0e25083188a010f3dcaa56c27949.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest functional second-source to LM3423Q1MHX/NOPB?","answer":"The TLC69611RTWR is a linear LED driver with 16 outputs and PWM dimming, but it is a different device class — linear vs. switching controller — and its 3.0 V supply and 85°C temperature limit do not match the 75 V input range or 125°C junction rating of the LM3423Q1MHX/NOPB. No direct pin-compatible second-source exists; the LM3423Q1MHX/NOPB is a unique controller for automotive high-brightness LED strings."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3423Q1MHX-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/LM3423Q1MHX-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}}