{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3435SQ/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3435SQ-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LM3435SQ-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LM3435SQ%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM3435SQ/NOPB, DC DC Regulator LED Driver, I²C Dimming, Flyback Topology, 1 MHz, 2A Switch, 3 Outputs, 2.7V to 5.5V Supply, -40°C to 150°C, 40-WFQFN Exposed Pad, Surface Mount.","salesMarkdown":"## Three-string LED driver with I²C control — what it is and where it fits The Texas Instruments LM3435SQ/NOPB is a DC DC regulator LED driver that runs a flyback topology at 1 MHz. It packs three independent outputs, each rated for 2 A on the internal switch, and talks I²C for dimming. That makes it a fit for multi-string backlight units in automotive infotainment displays or industrial panel lighting where you need per-string brightness control without extra PWM lines. Supply range is 2.7 V to 5.5 V. Junction temperature rating goes to 150°C. ## 1 MHz switching — small magnetics, tight layout The 1 MHz switching frequency lets you use a small flyback transformer and ceramic output caps, which saves board space. But at that frequency, layout parasitics matter — keep the switch node loop tight, and place the input bypass cap right at the IC pins. The datasheet layout example is worth following closely. ## Lifecycle and sourcing — active, no LTB pressure This part carries an Active product status and is ROHS3 compliant. No last-time-buy notice, no end-of-life flag. For a production BOM that needs multi-year supply assurance, that's the right posture — you're not chasing obsolete stock.","metaTitle":"LM3435SQ/NOPB LED Driver, DC DC Regulator, I²C Dimming, 2A","metaDescription":"LM3435SQ/NOPB is an active DC DC regulator LED driver with I²C dimming, 2A switch, 3 outputs, 1 MHz flyback topology, -40°C to 150°C junction temp, 40-WQFN","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Type":"DC DC Regulator","Dimming":"I²C","Package":"Tape & Reel (TR); Cut Tape (CT)","Topology":"Flyback","Frequency":"1MHz","Mounting Type":"Surface Mount","Package / Case":"40-WFQFN Exposed Pad","lifecycle_stage":"eol_hot","Number of Outputs":"3","Internal Switch(s)":"Yes","Operating Temperature":"-40°C ~ 150°C (TJ)","Voltage - Supply (Max)":"5.5V","Voltage - Supply (Min)":"2.7V","Supplier Device Package":"40-WQFN (5x5)","Current - Output / Channel":"2A (Switch)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$8.2","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$8.20000","currency":"USD"},{"qty":10,"price":"$7.41100","currency":"USD"},{"qty":25,"price":"$7.06640","currency":"USD"},{"qty":100,"price":"$6.13590","currency":"USD"},{"qty":250,"price":"$5.86012","currency":"USD"},{"qty":500,"price":"$5.34304","currency":"USD"},{"qty":1000,"price":"$4.87800","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/18b8a3393f6ffdb69a36a644e03c279f.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the maximum output current of LM3435SQ/NOPB?","answer":"The internal switch is rated for 2 A per channel. That's the peak switch current, not the continuous LED current — the actual LED current depends on the external inductor and sense resistor selection in the flyback design."},{"question":"What is a direct replacement or equivalent for LM3435SQ/NOPB?","answer":"No direct pin-compatible replacement is listed. The LM2703MF-ADJ/NOPB is a single-output boost regulator with 0.35 A switch current and no I²C dimming — it is not a functional equivalent for multi-string or I²C-controlled designs."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3435SQ-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/LM3435SQ-NOPB when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}