{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LTC3621EMS8E-3.3#PBF","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"LTC3621EMS8E-3.3~4PBF","canonicalUrl":"https://icboms.com/analog-devices/LTC3621EMS8E-3.3~4PBF","factsUrl":"https://icboms.com/api/mcp/products/LTC3621EMS8E-3.3%23PBF","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices LTC3621EMS8E-3.3#PBF step-down buck regulator, 3.3V fixed output, 1A, 1MHz switching, synchronous rectification, 8-MSOP-EP exposed pad, surface mount, tube.","salesMarkdown":"## 3.3V fixed-output buck at 1A — the board-level decision The LTC3621EMS8E-3.3#PBF: It integrates a synchronous rectifier, which means the low-side FET is on-die rather than an external Schottky — the efficiency gain is real at 1 A output, and the BOM count drops by one diode. ## Input voltage range and switching frequency — what they mean for the rail At 17 V max input, the part handles 12 V rails with healthy margin — a 12 V nominal bus that spikes to 16 V during a hot-swap event stays within the abs-max envelope.","metaTitle":"LTC3621EMS8E-3.3#PBF Buck Regulator, 3.3V Fixed, 1A","metaDescription":"Analog Devices LTC3621EMS8E-3.3#PBF step-down buck regulator, 3.3V fixed output at 1A, 1MHz switching, -40°C to 125°C. Active, RoHS3 compliant. Quoted to order.","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":"Fixed","Mounting Type":"Surface Mount","Package / Case":"8-TSSOP, 8-MSOP (0.118\\\", 3.00mm Width) Exposed Pad","lifecycle_stage":"eol_hot","Current - Output":"1A","Number of Outputs":"1","Output Configuration":"Positive","Frequency - Switching":"1MHz","Operating Temperature":"-40°C ~ 125°C (TJ)","Synchronous Rectifier":"Yes","Voltage - Input (Max)":"17V","Voltage - Input (Min)":"2.7V","Supplier Device Package":"8-MSOP-EP","Voltage - Output (Min/Fixed)":"3.3V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$7.74","priceTiers":[{"qty":1,"price":"$7.74000","currency":"USD"},{"qty":10,"price":"$6.99700","currency":"USD"},{"qty":25,"price":"$6.67120","currency":"USD"},{"qty":100,"price":"$5.79250","currency":"USD"},{"qty":250,"price":"$5.53216","currency":"USD"},{"qty":500,"price":"$5.04400","currency":"USD"},{"qty":1000,"price":"$4.60500","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/580cc60e6ba0adac42b6469a2bd38173.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LTC3621EMS8E-3.3%23PBF/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/LTC3621EMS8E-3.3~4PBF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/LTC3621EMS8E-3.3~4PBF 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}}