{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3503ITLX-44/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3503ITLX-44-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LM3503ITLX-44-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LM3503ITLX-44%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM3503ITLX-44/NOPB DC-DC boost regulator, step-up topology, 44V output, dual outputs, 750mA switch current, 1 MHz switching frequency, analog/PWM dimming, 10-TµSMD package, -40°C to 85°C operating temperature.","salesMarkdown":"## 1 MHz switching and dual dimming control The 1 MHz switching frequency keeps the inductor and output capacitor physically small — a 4.7 µH inductor and 1 µF ceramic cap are typical for a single-LED string. Both analog and PWM dimming are supported, giving the designer flexibility to adjust brightness without audible noise.","metaTitle":"LM3503ITLX-44/NOPB Texas Instruments DC-DC Boost Regulator","metaDescription":"Texas Instruments LM3503ITLX-44/NOPB DC-DC boost regulator, 44V output, dual outputs, 1 MHz switching, analog/PWM dimming.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["DC-DC Power Modules"],"specifications":{"Mfr":"Texas Instruments","Type":"DC DC Regulator","Series":"-","Dimming":"Analog, PWM","Package":"Tape & Reel (TR)","Topology":"Step-Up (Boost)","Frequency":"1MHz","Applications":"Backlight","Mounting Type":"Surface Mount","Package / Case":"10-WFBGA, DSBGA","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Voltage - Output":"44V","Number of Outputs":"2","Internal Switch(s)":"Yes","Base Product Number":"LM3503","Operating Temperature":"-40°C~85°C(TA)","Voltage - Supply (Max)":"5.5V","Voltage - Supply (Min)":"2.5V","Supplier Device Package":"10-TµSMD (1.9x2.07)","Current - Output / Channel":"750mA (Switch)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.4700","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/b5f4b20f44a7c0b93377b093bbaea4ad.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3503ITLX-44%2FNOPB/alternatives.json"},"ai":{"faq":[{"question":"What is the replacement for LM3503ITLX-44/NOPB?","answer":"Texas Instruments has not published an official replacement for the LM3503ITLX-44/NOPB. For a drop-in alternative, review the LM3503 family (base part number LM3503) for a non-obsolete variant with the same 10-TµSMD footprint and 44 V output rating."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3503ITLX-44-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/LM3503ITLX-44-NOPB 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}}