{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX669EUB+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX669EUB","canonicalUrl":"https://icboms.com/analog-devices/MAX669EUB","factsUrl":"https://icboms.com/api/mcp/products/MAX669EUB%2B","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices MAX669EUB+ switching controller, Boost / Flyback / SEPIC topologies, 1.8V-28V supply, 100kHz-500kHz switching, 10-uMAX/uSOP surface-mount package, Tube.","salesMarkdown":"## Multi-topology controller for isolated and non-isolated rails The MAX669EUB+ is a current-mode PWM controller from Analog Devices that handles Boost, Flyback, and SEPIC topologies — three common architectures for generating a regulated output from a lower or varying input rail. Its 1.8 V to 28 V supply range (Vcc/Vdd) means it can run off a 3.3 V logic rail, a 5 V USB bus, or a 24 V industrial supply without an external bias regulator. The switching frequency spans 100 kHz to 500 kHz with clock sync capability, letting the designer place the switching harmonics in a clean band or synchronise multiple converters to a common clock for noise management. ## 90% duty cycle and isolation-ready output Maximum duty cycle is 90 %, which sets the achievable step-up ratio — for a Boost converter running from 5 V input, the output can reach roughly 45 V before the duty-cycle ceiling limits the transfer. The output configuration is Positive, Isolation Capable — the controller can drive a transformer in Flyback topology to produce a galvanically isolated secondary rail, common in telecom and industrial auxiliary supplies. The single transistor-driver output (1 phase) drives an external N-channel MOSFET; no synchronous rectifier is built in, so the designer adds a Schottky catch diode on the output. ## Active production — no lifecycle concern The part is supplied in Tube packaging; date-code continuity is confirmed at order time against the specific lot.","metaTitle":"MAX669EUB+ Analog Devices Switching Controller","metaDescription":"MAX669EUB+ current-production switching controller from Analog Devices. Supports Boost, Flyback, SEPIC topologies. 1.8V-28V supply, 100kHz-500kHz, -40°C to","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Package":"Tube","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)","lifecycle_stage":"eol_hot","Control Features":"Enable, Frequency Control","Duty Cycle (Max)":"90%","Number of Outputs":"1","Output Configuration":"Positive, Isolation Capable","Frequency - Switching":"100kHz ~ 500kHz","Operating Temperature":"-40°C ~ 85°C (TA)","Synchronous Rectifier":"No","Supplier Device Package":"10-uMAX/uSOP","Voltage - Supply (Vcc/Vdd)":"1.8V ~ 28V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.47","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$6.47000","currency":"USD"},{"qty":10,"price":"$5.84100","currency":"USD"},{"qty":25,"price":"$5.56960","currency":"USD"},{"qty":100,"price":"$4.83610","currency":"USD"},{"qty":250,"price":"$4.61872","currency":"USD"},{"qty":500,"price":"$4.21120","currency":"USD"},{"qty":1000,"price":"$3.66782","currency":"USD"},{"qty":2500,"price":"$3.53197","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"What topologies does the MAX669EUB+ support?","answer":"The controller supports Boost, Flyback, and SEPIC topologies — covering step-up, isolated flyback, and non-inverting buck-boost configurations from a single controller."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX669EUB","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX669EUB 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}}