{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LTC1771IS8#PBF","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"LTC1771IS8~4PBF","canonicalUrl":"https://icboms.com/analog-devices/LTC1771IS8~4PBF","factsUrl":"https://icboms.com/api/mcp/products/LTC1771IS8%23PBF","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices LTC1771IS8#PBF step-down buck DC-DC controller, 1 output, transistor driver output, 2.8V to 18V supply, 100% duty cycle, 8-SOIC package, tube.","salesMarkdown":"## Buck controller with 100% duty cycle for low-dropout regulation The LTC1771IS8#PBF is a step-down (buck) switching regulator controller from Analog Devices, designed for applications where the output voltage must be regulated down from a supply rail as low as 2.8V. Its 100% maximum duty cycle means the top-side MOSFET can stay on continuously — useful when the input voltage drops close to the output target, such as in battery-powered systems where the supply decays below the regulation point and the controller passes the input straight through without dropping out. The controller operates from a Vcc supply of 2.8V to 18V, covering common 3.3V, 5V, and 12V input rails. ## Package and sourcing posture Housed in an 8-lead SOIC package (0.154\" width, 3.90 mm), the LTC1771IS8#PBF is supplied in tube format. The supplier device package is 8-SO. Lifecycle status is Active, and the part is ROHS3 compliant.","metaTitle":"LTC1771IS8#PBF Buck Controller, Step-Down, 8-SOIC","metaDescription":"Analog Devices LTC1771IS8#PBF step-down buck controller, 2.8V-18V supply, 100% duty cycle, -40°C to 85°C. Active production, ROHS3 compliant. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Package":"Tube","Function":"Step-Down","Topology":"Buck","Clock Sync":"No","Output Type":"Transistor Driver","Mounting Type":"Surface Mount","Output Phases":"1","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Control Features":"Enable, Soft Start","Duty Cycle (Max)":"100%","Number of Outputs":"1","Output Configuration":"Positive","Operating Temperature":"-40°C ~ 85°C (TA)","Synchronous Rectifier":"No","Supplier Device Package":"8-SO","Voltage - Supply (Vcc/Vdd)":"2.8V ~ 18V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$8.73","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$8.73000","currency":"USD"},{"qty":10,"price":"$7.88500","currency":"USD"},{"qty":25,"price":"$7.51840","currency":"USD"},{"qty":100,"price":"$6.52830","currency":"USD"},{"qty":250,"price":"$6.23492","currency":"USD"},{"qty":500,"price":"$5.68478","currency":"USD"},{"qty":1000,"price":"$5.19000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/860c16b7e6b8633ccd62296463421170.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the difference between LTC1771IS8#PBF and LTC1771ES8#TRPBF?","answer":"Both are the same LTC1771 die in an 8-SOIC package, with identical electrical specifications — the choice is packaging format for your assembly line."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/LTC1771IS8~4PBF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/LTC1771IS8~4PBF 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}}