{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LTC3561AIDD#PBF","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"LTC3561AIDD~4PBF","canonicalUrl":"https://icboms.com/analog-devices/LTC3561AIDD~4PBF","factsUrl":"https://icboms.com/api/mcp/products/LTC3561AIDD%23PBF","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices LTC3561AIDD#PBF step-down buck regulator, 1A output, 2.5MHz switching, adjustable 0.8V to 5V, synchronous rectification, 8-DFN (3x3) exposed pad, -40°C to 125°C.","salesMarkdown":"## 1A synchronous buck for tight 2.5V–5.5V rails The LTC3561AIDD#PBF: Its 2.5MHz switching frequency lets you use small inductors and ceramic capacitors, shrinking the total solution footprint on a single-layer or multi-layer board. ## Package and thermal design for the 8-DFN The part comes in an 8-lead WFDFN with exposed pad (3mm x 3mm body, supplier device package 8-DFN). The junction-to-ambient thermal resistance depends heavily on the PCB copper area; a 4-layer board with 1 oz copper on the inner planes keeps the die temperature within limits at full 1A load.","metaTitle":"LTC3561AIDD#PBF Buck Converter, 1A, 2.5MHz, Active","metaDescription":"Analog Devices LTC3561AIDD#PBF step-down regulator, 1A output, 2.5MHz switching, adjustable from 0.8V to 5V. Active production, ROHS3 compliant. Request quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Package":"Tube","Function":"Step-Down","Topology":"Buck","Output Type":"Adjustable","Mounting Type":"Surface Mount","Package / Case":"8-WFDFN Exposed Pad","lifecycle_stage":"eol_hot","Current - Output":"1A","Number of Outputs":"1","Output Configuration":"Positive","Frequency - Switching":"2.5MHz","Operating Temperature":"-40°C ~ 125°C (TJ)","Synchronous Rectifier":"Yes","Voltage - Input (Max)":"5.5V","Voltage - Input (Min)":"2.5V","Voltage - Output (Max)":"5V","Supplier Device Package":"8-DFN (3x3)","Voltage - Output (Min/Fixed)":"0.8V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.83","priceTiers":[{"qty":1,"price":"$6.83000","currency":"USD"},{"qty":10,"price":"$6.13000","currency":"USD"},{"qty":25,"price":"$5.79560","currency":"USD"},{"qty":100,"price":"$5.02280","currency":"USD"},{"qty":250,"price":"$4.76524","currency":"USD"},{"qty":500,"price":"$4.27582","currency":"USD"},{"qty":1000,"price":"$3.64500","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/8f878dd5627861833e60363b9e5b16ac.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LTC3561AIDD%23PBF/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for LTC3561AIDD#PBF?","answer":"Submit an RFQ through this listing. No stock-holding claim is made here — we quote to order."},{"question":"What is the closest functional second-source to LTC3561AIDD#PBF?","answer":"The LT3505IDD#PBF is a similar 1.2A buck regulator in the same 8-DFN package, but it lacks synchronous rectification (external diode required) and switches at 3MHz. The LT8620IMSE#PBF offers 2A output with synchronous rectification but comes in a different MSOP-16 package. Neither is a drop-in replacement — verify pinout and external component values before substituting."},{"question":"Will LTC3561AIDD#PBF drop into a panel that was specified around LT8631HFE#PBF without rewiring?","answer":"No. The LT8631HFE#PBF is in a different package (16-lead TSSOP exposed pad) and has a different pinout. The LTC3561AIDD#PBF requires its own PCB layout — a board spin is necessary for direct replacement."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/LTC3561AIDD~4PBF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/LTC3561AIDD~4PBF 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}}