{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3503ITLX-16/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3503ITLX-16-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LM3503ITLX-16-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LM3503ITLX-16%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM3503ITLX-16/NOPB, DC-DC Step-Up (Boost) Regulator, 1 MHz, 2.5 V to 5.5 V Supply, 16 V Output, 400 mA Switch, 10-TµSMD Package, -40°C to 85°C.","salesMarkdown":"## Boost regulator for dual-channel backlight It integrates two outputs with a 400 mA (switch) current capability, switching at 1 MHz to keep external inductor and capacitor values small. Output voltage is regulated to 16 V, making it suitable for driving series-connected LEDs in small- to medium-sized LCD panels. ## Dimming flexibility and package reality Dimming is supported in both analog and PWM modes — the PWM input can be fed directly from a microcontroller GPIO or a PWM backlight controller, giving the designer a choice between linear brightness control and high-efficiency pulsed dimming. The part comes in a 10-bump TµSMD (DSBGA) package, 1.9 x 2.07 mm. That tiny footprint saves board space but demands a controlled solder-paste stencil and reflow profile — hand-soldering is impractical.","metaTitle":"LM3503ITLX-16/NOPB DC-DC Boost Regulator, 1 MHz, 16 V Output","metaDescription":"Texas Instruments LM3503ITLX-16/NOPB step-up regulator for backlight, 2.5-5.5 V supply, 1 MHz switching, 400 mA switch, 10-TµSMD.","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":"Analog, PWM","Package":"Tape & Reel (TR)","Topology":"Step-Up (Boost)","Frequency":"1MHz","Applications":"Backlight","Mounting Type":"Surface Mount","Package / Case":"10-WFBGA, DSBGA","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Voltage - Output":"16V","Number of Outputs":"2","Internal Switch(s)":"Yes","Base Product Number":"LM3503","Operating Temperature":"-40°C~85°C(TA)","Voltage - Supply (Max)":"5.5V","Voltage - Supply (Min)":"2.5V","Supplier Device Package":"10-TµSMD (1.9x2.07)","Current - Output / Channel":"400mA (Switch)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/b5f4b20f44a7c0b93377b093bbaea4ad.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3503ITLX-16%2FNOPB/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy LM3503ITLX-16/NOPB?","answer":"The LM3503ITLX-16/NOPB is obsolete from the manufacturer."},{"question":"Is LM3503ITLX-16/NOPB obsolete?","answer":"No official replacement part number is listed."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3503ITLX-16-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/LM3503ITLX-16-NOPB when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T18:03:28.771Z","lastPublished":"2026-07-22T18:03:28.771Z","indexable":true}}