{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3509SD/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3509SD-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LM3509SD-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LM3509SD%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM3509SD/NOPB, DC-DC step-up (boost) regulator, 2 outputs, 30 mA per channel, I²C dimming, 1.27 MHz switching frequency, 10-WFDFN exposed pad package, -40°C to 85°C operation.","salesMarkdown":"## Boost backlight driver with I²C dimming The LM3509SD/NOPB is a Texas Instruments DC-DC step-up (boost) regulator designed for backlight applications, delivering two regulated outputs at 30 mA per channel with I²C dimming control. ## Supply rail and output voltage ceiling Internal switches simplify the layout — no external FET or boost diode needed, which cuts component count and keeps the BOM tight for high-volume backlight boards. Packaging options include Tape & Reel and Cut Tape for the 10-WFDFN exposed pad package (3x3 mm 10-SON), suitable for automated assembly.","metaTitle":"LM3509SD/NOPB – TI Boost LED Driver with I²C Dimming, Active","metaDescription":"Texas Instruments LM3509SD/NOPB DC-DC step-up regulator for backlight, 1.27 MHz, 30 mA/ch, 2 outputs, I²C dimming. Active lifecycle, 10-SON package.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"Texas Instruments","Type":"DC DC Regulator","Series":"-","Dimming":"I²C","Package":"Tape & Reel (TR); Cut Tape (CT)","Topology":"Step-Up (Boost)","Frequency":"1.27MHz","Applications":"Backlight","Mounting Type":"Surface Mount","Package / Case":"10-WFDFN Exposed Pad","Product Status":"Active","lifecycle_stage":"eol_hot","Voltage - Output":"21V","Number of Outputs":"2","Internal Switch(s)":"Yes","Base Product Number":"LM3509","Operating Temperature":"-40°C~85°C(TA)","Voltage - Supply (Max)":"5.5V","Voltage - Supply (Min)":"2.7V","Supplier Device Package":"10-SON (3x3)","Current - Output / Channel":"30mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.8200","priceTiers":[{"qty":1,"price":"$2.82000","currency":"USD"},{"qty":10,"price":"$2.53000","currency":"USD"},{"qty":25,"price":"$2.39200","currency":"USD"},{"qty":100,"price":"$2.07320","currency":"USD"},{"qty":250,"price":"$1.96688","currency":"USD"},{"qty":500,"price":"$1.76488","currency":"USD"},{"qty":1000,"price":"$1.50450","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/c492783d3d39a0ad5da58934a8e75bb5.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3509SD%2FNOPB/alternatives.json"},"ai":{"faq":[{"question":"How can I order or check stock for LM3509SD/NOPB?","answer":"The LM3509SD/NOPB is an active Texas Instruments part, ROHS3 compliant, and available through our sourcing desk. Submit an RFQ with your target quantity and lead-time requirement; we confirm current pricing and availability per order."},{"question":"Does LM3509SD/NOPB have I²C dimming control?","answer":"Yes, the LM3509SD/NOPB uses I²C for dimming, allowing digital brightness control from a microcontroller or application processor without an extra PWM pin."},{"question":"What is the closest alternative to LM3509SD/NOPB?","answer":"The LM2703MF-ADJ/NOPB is a single-output boost regulator (350 mA) with adjustable output, but it lacks I²C dimming and the dual-channel capability of the LM3509SD/NOPB. For two-channel I²C-controlled backlight, the LM3509SD/NOPB is the intended part."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3509SD-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/LM3509SD-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}}