{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MIC2179YSM","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"MIC2179YSM","canonicalUrl":"https://icboms.com/microchip/MIC2179YSM","factsUrl":"https://icboms.com/api/mcp/products/MIC2179YSM","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology MIC2179YSM, Step-Down Buck Regulator, Adjustable Output, 1.5A, 200kHz, Surface Mount, 20-SSOP (0.209\", 5.30mm Width), Tube.","salesMarkdown":"## Active production — parametric fit for the BOM line The MIC2179YSM is an active-production step-down buck regulator from Microchip Technology, rated for 1.5 A continuous output with an adjustable output voltage from a 1.245 V reference up to the 16.5 V input maximum. The -40°C to 125°C junction temperature range qualifies it for engine-bay or outdoor enclosure deployment where ambient heat pushes the die above 85°C. ## No synchronous rectifier — external diode selection The MIC2179YSM does not integrate a synchronous rectifier — the low-side freewheeling diode must be added externally. A 2 A Schottky with a Vf below 0.5 V at 1.5 A keeps the efficiency above 85% at full load; the diode's reverse voltage rating should exceed the 16.5 V input maximum with margin. ## Sourcing posture and compliance ROHS3 compliant — the part is free of the ten restricted substances under EU RoHS, including the four phthalates added in 2015/863. No UL, CSA, or IEC certification is stated in the listing.","metaTitle":"MIC2179YSM Buck Regulator, 1.5A, 200kHz, 20-SSOP","metaDescription":"Active Microchip Technology MIC2179YSM step-down buck regulator, 1.5A output, 200kHz, adjustable output, -40 to 125°C. 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":"Adjustable","Mounting Type":"Surface Mount","Package / Case":"20-SSOP (0.209\\\", 5.30mm Width)","lifecycle_stage":"eol_hot","Current - Output":"1.5A","Number of Outputs":"1","Output Configuration":"Positive","Frequency - Switching":"200kHz","Operating Temperature":"-40°C ~ 125°C (TJ)","Synchronous Rectifier":"No","Voltage - Input (Max)":"16.5V","Voltage - Input (Min)":"4.5V","Voltage - Output (Max)":"16.5V","Supplier Device Package":"20-SSOP","Voltage - Output (Min/Fixed)":"1.245V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$7.28","priceTiers":[{"qty":1,"price":"$7.28000","currency":"USD"},{"qty":25,"price":"$6.63000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/bc8af7d73b47c726f5c1afa27c549926.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/MIC2179YSM/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to MIC2179YSM?","answer":"The MIC2179YSM is a single-sourced Microchip part; if a backup is needed, a parametric search for a 1.5 A, 200 kHz, adjustable-output buck regulator in a 20-SSOP package is the starting point, but pinout compatibility would require a board layout review."},{"question":"What compliance documentation does Microchip Technology provide for MIC2179YSM?","answer":"The part is ROHS3 compliant per the manufacturer's listing. No UL, IEC, or REACH documentation is referenced in the spec record; Microchip typically provides a Certificate of Compliance on request through distribution."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/MIC2179YSM","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/MIC2179YSM 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}}