{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3697YFQR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3697YFQR","canonicalUrl":"https://icboms.com/texas-instruments/LM3697YFQR","factsUrl":"https://icboms.com/api/mcp/products/LM3697YFQR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM3697YFQR, DC DC Regulator, Step-Up (Boost) LED Driver, 40V output, 3 channels at 30 mA, 500kHz/1MHz switching, 12-WFBGA DSBGA package, -40°C to 85°C, Surface Mount.","salesMarkdown":"## What this part is and where it fits The Texas Instruments LM3697YFQR is a DC-DC regulator LED driver built around a step-up (boost) topology, designed specifically for backlight applications. It integrates three regulated current sinks, each rated for 30 mA, and delivers up to 40 V on the output — enough to drive a multi-LED string in a small-panel backlight. The part switches at either 500 kHz or 1 MHz, letting you trade inductor size against switching losses. It lives in a 12-DSBGA package (1.64 x 1.24 mm), so it is a board-space play: fine for a compact display assembly, but you will want a microscope and a reflow profile to place it reliably. ## Key ratings and what they mean for the BOM The 40 V output ceiling sets the maximum LED string voltage. Three channels at 30 mA each drive three parallel strings. ## Switching frequency and inductor selection You pick 500 kHz or 1 MHz via the RT pin. At 1 MHz the inductor can be smaller; at 500 kHz efficiency edges up. ## Package and placement reality 12-DSBGA at 1.64 x 1.24 mm — that is a wafer-level chip-scale package. No leads to probe, no hand-solder option. You need a stencil, a reflow oven, and X-ray inspection to verify the bumps. ## Lifecycle and sourcing The LM3697YFQR is listed as Active and ROHS3 compliant.","metaTitle":"LM3697YFQR DC-DC Regulator LED Driver, 40V, 3-Channel","metaDescription":"TI LM3697YFQR is a step-up (boost) DC-DC regulator LED driver for backlight applications.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Type":"DC DC Regulator","Package":"Tape & Reel (TR); Cut Tape (CT)","Topology":"Step-Up (Boost)","Frequency":"500kHz, 1MHz","Applications":"Backlight","Mounting Type":"Surface Mount","Package / Case":"12-WFBGA, DSBGA","lifecycle_stage":"eol_hot","Voltage - Output":"40V","Number of Outputs":"3","Internal Switch(s)":"Yes","Operating Temperature":"-40°C ~ 85°C (TA)","Voltage - Supply (Max)":"5.5V","Voltage - Supply (Min)":"2.7V","Supplier Device Package":"12-DSBGA (1.64x1.24)","Current - Output / Channel":"30mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.83","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.83000","currency":"USD"},{"qty":10,"price":"$0.73500","currency":"USD"},{"qty":25,"price":"$0.69000","currency":"USD"},{"qty":100,"price":"$0.56320","currency":"USD"},{"qty":250,"price":"$0.52312","currency":"USD"},{"qty":500,"price":"$0.44520","currency":"USD"},{"qty":1000,"price":"$0.35616","currency":"USD"},{"qty":3000,"price":"$0.32277","currency":"USD"},{"qty":6000,"price":"$0.31500","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/6d0bebcf9868c6b828981df8662c53b0.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Can the LM3697YFQR drive white LEDs?","answer":"Yes. It is a DC-DC boost regulator with three 30 mA current sinks designed for backlight applications, which typically use white LEDs. The 40 V output supports multiple white LEDs in series per channel."},{"question":"What is the switching frequency of LM3697YFQR?","answer":"Selectable between 500 kHz and 1 MHz via the RT pin. Choose 1 MHz for smaller inductors or 500 kHz for better efficiency and lower EMI."},{"question":"What is LM3697YFQR's listed type on this component line?","answer":"DC DC Regulator with a Step-Up (Boost) topology, intended for backlight applications."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3697YFQR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM3697YFQR 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}}