{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3502SQ-25/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3502SQ-25-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LM3502SQ-25-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LM3502SQ-25%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM3502SQ-25/NOPB, DC-DC Regulator, Boost Topology, 1MHz, PWM Dimming, 2 Outputs, 25V Output, 600mA Switch, 16-WFQFN, -40°C to 85°C.","salesMarkdown":"It integrates the switching FET internally, steps up from a 2.5 V to 5.5 V supply rail to a regulated 25 V output, and delivers up to 600 mA switch current across two independently dimmable channels. ## Obsolete — sourcing reality for the BOM line Texas Instruments has marked the LM3502SQ-25/NOPB as Obsolete. For a BOM line that calls out this exact part, the only channel is independent distribution — surplus, new-old-stock, or broker-sourced reels. If you are freezing a design or managing a last-time-buy window, this is the cohort to watch: once the surplus inventory clears, the part becomes unavailable. ## Two outputs, 25 V rail — what the ratings mean for the design The 25 V output drives two LED strings. The 600 mA switch current is the peak through the internal FET.","metaTitle":"LM3502SQ-25/NOPB LED Driver, DC-DC Boost, 25V, 2 Outputs","metaDescription":"LM3502SQ-25/NOPB is a DC-DC boost LED driver with PWM dimming, 25V output, 2 channels, 1MHz switching. Obsolete.","metaKeywords":null},"attributes":{"series":"*","packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"Texas Instruments","Type":"DC DC Regulator","Series":"-","Dimming":"PWM","Package":"Tape & Reel (TR); Cut Tape (CT)","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":"25V","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":"600mA (Switch)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.3100","priceTiers":[{"qty":229,"price":"$1.31000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/6b8cf0ce25e38b3c505b09a12ea5768e.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3502SQ-25%2FNOPB/alternatives.json"},"ai":{"faq":[{"question":"Is LM3502SQ-25/NOPB obsolete?","answer":"Yes, Texas Instruments has marked the LM3502SQ-25/NOPB as Obsolete. There is no official successor order code. For a replacement, you will need to evaluate a different boost LED driver with similar specifications, such as a part from the TLC series, but verify pin compatibility and electrical requirements."},{"question":"What is the replacement for LM3502SQ-25/NOPB?","answer":"Texas Instruments does not list an official replacement for the LM3502SQ-25/NOPB. A functional alternative would need to be a DC-DC boost LED driver with PWM dimming, two outputs, and a 25 V output capability. Parts like the TLC5940RHBR or TLC69611RTWR are linear drivers, not boost regulators, so they are not drop-in substitutes. Evaluate a different boost topology part from the current TI portfolio."},{"question":"How many outputs does LM3502SQ-25/NOPB have?","answer":"The LM3502SQ-25/NOPB has two outputs."},{"question":"Can I substitute LM3502SQ-25/NOPB with any other LED driver?","answer":"A direct substitute would need to be a DC-DC boost regulator with PWM dimming, two outputs, and a 25 V output. The TLC5940RHBR and TLC69611RTWR are linear drivers with different topologies and are not boost converters. No pin-compatible second source is listed. You will need to redesign the boost converter section if switching to a different part."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3502SQ-25-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/LM3502SQ-25-NOPB when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T10:39:33.080Z","lastPublished":"2026-07-16T10:39:33.080Z","indexable":true}}