{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MIC2179-3.3YSM-TR","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"MIC2179-3.3YSM-TR","canonicalUrl":"https://icboms.com/microchip/MIC2179-3.3YSM-TR","factsUrl":"https://icboms.com/api/mcp/products/MIC2179-3.3YSM-TR","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology MIC2179-3.3YSM-TR step-down buck regulator, fixed 3.3V output, 1.5A, 200kHz switching, 20-SSOP surface-mount package, Tape & Reel.","salesMarkdown":"## Fixed 3.3V buck at 1.5A — the switching regulator for a single-rail load The MIC2179-3.3YSM-TR is a fixed 3.3 V output step-down (buck) switching regulator from Microchip Technology, delivering up to 1.5 A continuous from a 4.5 V to 16.5 V input rail. Switching at 200 kHz, it uses an external diode — no synchronous rectifier on-chip — so the bill of materials includes a Schottky catch diode and an output inductor sized for that frequency. ## Input range and thermal envelope The 4.5 V minimum input means it starts cleanly from a 5 V regulated rail or a 3-cell Li-ion stack; the 16.5 V maximum covers 12 V industrial supplies with margin.","metaTitle":"MIC2179-3.3YSM-TR Buck Regulator, 3.3V Fixed, 1.5A, 20-SSOP","metaDescription":"Microchip Technology MIC2179-3.3YSM-TR step-down buck regulator, fixed 3.3V output, 1.5A, 200kHz, 20-SSOP. Active, ROHS3 compliant. Available to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Function":"Step-Down","Topology":"Buck","Output Type":"Fixed","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","Supplier Device Package":"20-SSOP","Voltage - Output (Min/Fixed)":"3.3V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$7.28","priceTiers":[{"qty":1,"price":"$7.28000","currency":"USD"},{"qty":25,"price":"$6.63000","currency":"USD"},{"qty":1000,"price":"$6.63000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/bc8af7d73b47c726f5c1afa27c549926.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/MIC2179-3.3YSM-TR/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to MIC2179-3.3YSM-TR?","answer":"The MIC2179 family shares the same 20-SSOP footprint and pinout for adjustable-output variants, but the fixed 3.3 V version is a single-order-code part. For a parametric match, look for a 1.5 A, 200 kHz buck in the same package with an external compensation pin."},{"question":"What compliance documentation does Microchip Technology provide for MIC2179-3.3YSM-TR?","answer":"The part is ROHS3 compliant."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/MIC2179-3.3YSM-TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/MIC2179-3.3YSM-TR 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}}