{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LTC3805IMSE-5#TRPBF","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"LTC3805IMSE-5~4TRPBF","canonicalUrl":"https://icboms.com/analog-devices/LTC3805IMSE-5~4TRPBF","factsUrl":"https://icboms.com/api/mcp/products/LTC3805IMSE-5%23TRPBF","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices LTC3805IMSE-5#TRPBF multi-topology switching controller, boost/flyback/SEPIC, 70kHz-700kHz, 3.95V-9.5V supply, 10-MSOP-EP exposed pad, Tape & Reel.","salesMarkdown":"## Multi-topology controller for isolated and non-isolated designs The LTC3805IMSE-5#TRPBF: This is a current-mode switching controller that supports boost, flyback, and SEPIC topologies — a single part covers step-up and step-up/step-down conversion. The output configuration is positive and isolation-capable, meaning it can drive the primary side of a flyback transformer with an optocoupler feedback loop. The switching frequency is programmable from 70 kHz to 700 kHz, and the part includes a clock sync input (SYNC) for aligning the switching edge with an external clock — useful when multiple converters must share a common switching frequency to avoid beat-frequency noise. ## Supply range, duty cycle, and temperature grade The controller operates from a 3.95 V to 9.5 V Vcc supply, with an 80% maximum duty cycle. The single transistor-driver output (one phase) drives an external N-channel MOSFET; no synchronous rectifier is built in, so the design uses a diode on the secondary side. ## Control features and package format Built-in control features include an enable pin for shutdown and a soft-start pin that programs the output ramp-up time, preventing inrush current on startup.","metaTitle":"Analog Devices LTC3805IMSE-5#TRPBF Boost/Flyback/SEPIC","metaDescription":"Active-production multi-topology switching controller IC. Boost, flyback, SEPIC. 70kHz-700kHz, 3.95V-9.5V supply. -40°C to 125°C. ROHS3. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Function":"Step-Up, Step-Up/Step-Down","Topology":"Boost, Flyback, SEPIC","Clock Sync":"Yes","Output Type":"Transistor Driver","Mounting Type":"Surface Mount","Output Phases":"1","Package / Case":"10-TFSOP, 10-MSOP (0.118\\\", 3.00mm Width) Exposed Pad","lifecycle_stage":"eol_hot","Control Features":"Enable, Soft Start","Duty Cycle (Max)":"80%","Number of Outputs":"1","Output Configuration":"Positive, Isolation Capable","Frequency - Switching":"70kHz ~ 700kHz","Operating Temperature":"-40°C ~ 125°C (TJ)","Synchronous Rectifier":"No","Supplier Device Package":"10-MSOP-EP","Voltage - Supply (Vcc/Vdd)":"3.95V ~ 9.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$5.06","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$5.06000","currency":"USD"},{"qty":10,"price":"$4.54100","currency":"USD"},{"qty":25,"price":"$4.29280","currency":"USD"},{"qty":100,"price":"$3.72060","currency":"USD"},{"qty":250,"price":"$3.52980","currency":"USD"},{"qty":500,"price":"$3.16728","currency":"USD"},{"qty":1000,"price":"$2.70000","currency":"USD"},{"qty":2500,"price":"$2.70000","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/LTC3805IMSE-5~4TRPBF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/LTC3805IMSE-5~4TRPBF 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}}