{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LT8391AEFE#PBF","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"LT8391AEFEPBF","canonicalUrl":"https://icboms.com/analog-devices/LT8391AEFEPBF","factsUrl":"https://icboms.com/api/mcp/products/LT8391AEFE%23PBF","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices LT8391AEFE#PBF DC DC LED Driver Controller, Buck-Boost Topology, 60V Output, 600kHz-2MHz, Analog/PWM Dimming, 28-TSSOP-EP, -40°C to 125°C.","salesMarkdown":"## 60V buck-boost LED controller with flexible dimming The LT8391AEFE#PBF is a DC DC controller from Analog Devices designed for LED driving in automotive and lighting applications. It combines step-down (buck) and step-up (boost) topology in a single controller, regulating a constant-current LED string from input voltages between 4V and 60V. The controller supports both analog and PWM dimming, giving you the choice between smooth intensity control and high-ratio on/off dimming. ## Package and thermal management for the 28-TSSOP-EP Housed in a 28-lead TSSOP with an exposed pad (28-TSSOP-EP), the package measures 0.173\" (4.40mm) wide. Since the controller has no internal switches, the external MOSFETs and inductor carry the load current.","metaTitle":"LT8391AEFE#PBF DC DC Controller, 60V Output, 28-TSSOP","metaDescription":"Analog Devices LT8391AEFE#PBF DC DC LED driver controller, buck-boost topology, 60V output, 600kHz-2MHz, -40°C to 125°C. Active, RoHS3. Quoted to order.","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":"Tube","Topology":"Step-Down (Buck), Step-Up (Boost)","Frequency":"600kHz ~ 2MHz","Applications":"Automotive, Lighting","Mounting Type":"Surface Mount","Package / Case":"28-TSSOP (0.173\\\", 4.40mm Width) Exposed Pad","lifecycle_stage":"eol_hot","Voltage - Output":"60V","Number of Outputs":"1","Internal Switch(s)":"No","Operating Temperature":"-40°C ~ 125°C (TJ)","Voltage - Supply (Max)":"60V","Voltage - Supply (Min)":"4V","Supplier Device Package":"28-TSSOP-EP"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$9.28","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$9.28000","currency":"USD"},{"qty":10,"price":"$8.38200","currency":"USD"},{"qty":25,"price":"$7.99200","currency":"USD"},{"qty":100,"price":"$6.93950","currency":"USD"},{"qty":250,"price":"$6.62760","currency":"USD"},{"qty":500,"price":"$6.04284","currency":"USD"},{"qty":1000,"price":"$5.26311","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/45534a05c273cfbb406a290569541e9f.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the LT8391AEFE#PBF's input voltage range and output capability?","answer":"The controller accepts a supply voltage from 4V to 60V and can regulate LED strings up to 60V output. It operates as a buck-boost controller, so it handles input voltages both above and below the output voltage."},{"question":"What dimming methods does the LT8391AEFE#PBF support?","answer":"It supports both analog and PWM dimming. Analog dimming provides continuous current adjustment, while PWM dimming enables high-ratio on/off control for applications requiring precise brightness steps."},{"question":"What package does the LT8391AEFE#PBF come in and can I hand-solder it?","answer":"It comes in a 28-lead TSSOP with an exposed pad (28-TSSOP-EP), 4.40mm wide. A stencil for the pad helps avoid voids."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/LT8391AEFEPBF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/LT8391AEFEPBF when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:45:10.375Z","lastPublished":"2026-07-22T19:45:10.375Z","indexable":true}}