{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LT3755EMSE-1#PBF","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"LT3755EMSE-1PBF","canonicalUrl":"https://icboms.com/analog-devices/LT3755EMSE-1PBF","factsUrl":"https://icboms.com/api/mcp/products/LT3755EMSE-1%23PBF","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices LT3755EMSE-1#PBF, DC DC Controller, LED Driver, 1 Output, 100kHz ~ 1MHz, 4.5V to 40V Supply, 16-MSOP-EP, Surface Mount, Tube.","salesMarkdown":"## What this controller does — and what it doesn't The LT3755EMSE-1#PBF is a DC/DC controller designed specifically for driving LEDs. It is not a converter with an integrated switch — the external MOSFET is your call, which gives flexibility in current rating and thermal layout. The controller supports four topologies: buck, boost, SEPIC, and flyback, so it can handle a string of LEDs whether the input is above, below, or equal to the output voltage. Dimming is handled either by analog control or PWM. The switching frequency is programmable from 100 kHz to 1 MHz, letting you trade off inductor size against switching losses and EMI. The input supply range runs from 4.5 V to 40 V, covering automotive battery rails and industrial supplies. ## Package and thermal — the exposed pad matters The part comes in a 16-lead MSOP with an exposed pad (16-MSOP-EP). That pad is the main thermal path — without a proper via stitch to the ground plane, the junction temperature climbs fast under continuous load. The operating junction temperature range is 0°C to 125°C, so it is rated for commercial and industrial environments, but not for automotive under-hood or military cold-soak. ## Lifecycle and sourcing — no LTB worry The LT3755EMSE-1#PBF carries an active lifecycle status and is RoHS3 compliant.","metaTitle":"LT3755EMSE-1#PBF LED Driver Controller, 100kHz-1MHz","metaDescription":"LT3755EMSE-1#PBF DC DC Controller for LED drive. Supports buck, boost, SEPIC, flyback. Analog and PWM dimming. 4.5V-40V input. Active, RoHS3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Type":"DC DC Controller","Dimming":"Analog, PWM","Package":"Tube","Topology":"Flyback, SEPIC, Step-Down (Buck), Step-Up (Boost)","Frequency":"100kHz ~ 1MHz","Mounting Type":"Surface Mount","Package / Case":"16-TFSOP (0.118\\\", 3.00mm Width) Exposed Pad","lifecycle_stage":"eol_hot","Number of Outputs":"1","Internal Switch(s)":"No","Operating Temperature":"0°C ~ 125°C (TJ)","Voltage - Supply (Max)":"40V","Voltage - Supply (Min)":"4.5V","Supplier Device Package":"16-MSOP-EP"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$8.63","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$8.63000","currency":"USD"},{"qty":10,"price":"$7.79400","currency":"USD"},{"qty":25,"price":"$7.43160","currency":"USD"},{"qty":100,"price":"$6.45290","currency":"USD"},{"qty":250,"price":"$6.16284","currency":"USD"},{"qty":500,"price":"$5.61906","currency":"USD"},{"qty":1000,"price":"$5.13000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/83205d0a0ffb9359a0bfdbe7593dc850.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is a direct replacement or equivalent for LT3755EMSE-1#PBF?","answer":"The LT3755EUD-1#PBF is a functional peer with the same dimming, topology support, and supply range, but in a different package (QFN vs MSOP-EP). The LT3755EMSE-2#TRPBF is the same die in tape-and-reel packaging. Neither is a direct pin-for-pin drop-in — verify the footprint before substituting."},{"question":"Is LT3755EMSE-1#PBF available in tube packaging?","answer":"Yes, the listed package type is Tube."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/LT3755EMSE-1PBF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/LT3755EMSE-1PBF 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}}