{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3502SQX-44","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3502SQX-44","canonicalUrl":"https://icboms.com/texas-instruments/LM3502SQX-44","factsUrl":"https://icboms.com/api/mcp/products/LM3502SQX-44","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM3502SQX-44 DC-DC Step-Up (Boost) Regulator, 44V Output, 2 Channels, 1MHz Switching Frequency, PWM Dimming, Internal Switch, 16-WFQFN Exposed Pad, -40°C to 85°C.","salesMarkdown":"## Boost regulator with PWM dimming for LCD backlight It delivers a regulated 44V output across two independent channels, each capable of driving LED strings with an internal switch rated at 750mA. PWM dimming input on the control pin lets the host processor or a dedicated backlight controller adjust LED brightness without audible noise — a common requirement in automotive infotainment screens and handheld instruments where the display must dim cleanly across the full range. ## Supply rails and temperature envelope Input supply range runs from 2.5V up to 5.5V, so it works off a single lithium-ion cell, a 3.3V rail, or a 5V USB bus. No official successor or direct replacement part number has been published by TI for this exact order code. Available inventory sits in independent and surplus distribution. No stock-holding claim is made; the part is procured per BOM quantity.","metaTitle":"LM3502SQX-44 DC-DC Boost Regulator, 44V, 2-Ch, PWM Dimming","metaDescription":"Texas Instruments LM3502SQX-44 DC-DC boost regulator, 44V output, 2 channels, 1MHz switching, PWM dimming, -40°C to 85°C.","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":"PWM","Package":"Tape & Reel (TR)","Topology":"Step-Up (Boost)","Frequency":"1MHz","Applications":"Backlight","Mounting Type":"Surface Mount","Package / Case":"16-WFQFN Exposed Pad","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Voltage - Output":"44V","Number of Outputs":"2","Internal Switch(s)":"Yes","Base Product Number":"LM3502","Operating Temperature":"-40°C~85°C(TA)","Voltage - Supply (Max)":"5.5V","Voltage - Supply (Min)":"2.5V","Supplier Device Package":"16-WQFN (4x4)","Current - Output / Channel":"750mA (Switch)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/a1b4525ebe7daa3a039473fa31545909.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3502SQX-44/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3502SQX-44","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM3502SQX-44 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}}