{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LT3755EMSE#TRPBF","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"LT3755EMSE~4TRPBF","canonicalUrl":"https://icboms.com/analog-devices/LT3755EMSE~4TRPBF","factsUrl":"https://icboms.com/api/mcp/products/LT3755EMSE%23TRPBF","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices LT3755EMSE#TRPBF DC DC Controller, LED Driver, 100kHz~1MHz, Analog/PWM Dimming, 16-MSOP-EP, Tape & Reel.","salesMarkdown":"## LED driver controller with wide topology support The LT3755EMSE#TRPBF from Analog Devices is a DC DC controller designed for LED driving, supporting Buck, Boost, Flyback, and SEPIC topologies. It accepts an input supply from 4.5 V up to 40 V, making it suitable for automotive, industrial, and general-purpose lighting power rails where the bus voltage varies. The controller operates with a switching frequency programmable from 100 kHz to 1 MHz, allowing the designer to trade off inductor size against switching losses. The 1 MHz upper end keeps the magnetics small for space-constrained boards. ## Dimming and output control Both analog and PWM dimming are supported, giving the BOM engineer flexibility in the LED current control loop. PWM dimming delivers a wider contrast ratio without color shift, while analog dimming simplifies the control interface when a PWM source is not available. The part is a controller only — it requires an external N-channel MOSFET and sense resistor to form the power stage. This lets the designer scale the output current and voltage beyond what an integrated-switch part can deliver, sizing the external FET to the thermal budget of the specific LED string. ## Package and thermal management Housed in a 16-lead MSOP with an exposed pad (16-MSOP-EP), the package footprint is 3.00 mm wide. The operating junction temperature range is 0°C to 125°C. This commercial-grade range covers most indoor and well-ventilated enclosures but does not extend to the -40°C cold crank typical of automotive exterior lighting — check the ambient temperature profile of the end system. ## Active production and compliance Supplied in Tape & Reel (TR) packaging — the #TRPBF suffix indicates reel quantity suitable for automated pick-and-place assembly. Cut Tape (CT) options are also listed for prototype or low-volume builds.","metaTitle":"LT3755EMSE#TRPBF DC DC Controller, 100kHz~1MHz","metaDescription":"Active production LED driver controller from Analog Devices. Supports Buck, Boost, Flyback, SEPIC topologies. 4.5V to 40V input. Analog and PWM dimming.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Type":"DC DC Controller","Dimming":"Analog, PWM","Package":"Tape & Reel (TR); Cut Tape (CT)","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"},{"qty":2500,"price":"$5.13000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/83205d0a0ffb9359a0bfdbe7593dc850.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the difference between LT3755EMSE#TRPBF and LT3755EMSE-2#TRPBF?","answer":"Both parts share the same pinout, package (16-MSOP-EP), topology support, and dimming interface. The LT3755EMSE-2#TRPBF is a variant with slightly different internal compensation; the datasheet should be consulted for the exact operating condition differences. Mechanically and electrically they are drop-in compatible on the same PCB footprint."},{"question":"What input voltage range does the LT3755EMSE#TRPBF support?","answer":"The supply voltage range is 4.5 V minimum to 40 V maximum. This covers standard 12 V and 24 V industrial rails as well as 48 V telecom buses with margin."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/LT3755EMSE~4TRPBF","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~4TRPBF 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}}