{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MIC2549A-1YM-TR","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"MIC2549A-1YM-TR","canonicalUrl":"https://icboms.com/microchip/MIC2549A-1YM-TR","factsUrl":"https://icboms.com/api/mcp/products/MIC2549A-1YM-TR","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology MIC2549A-1YM-TR high-side USB power switch, 3 A continuous, 35 mOhm typical Rds(on), adjustable current limit, reverse-current blocking, slew-rate controlled, 8-SOIC package, Tape & Reel.","salesMarkdown":"## Protection set and inrush control The MIC2549A-1YM-TR: Three fault protections are integrated: adjustable current limiting (set by an external resistor between the ILIM pin and ground), over-temperature shutdown, and reverse-current blocking. The reverse-current block prevents the output from back-feeding the input when the load capacitance holds a higher voltage than the supply rail — a common failure mode in hot-swap USB ports. The slew-rate controlled turn-on limits the inrush into capacitive loads; the ramp rate is internally fixed, so a 10 µF output capacitance charges without tripping the upstream regulator's over-current protection. The part carries ROHS3 compliance, meaning it is fully lead-free and meets the EU RoHS directive without exemption-based exemptions. No official pin-compatible second source exists from Microchip; the part is sole-sourced for the listed BOM position.","metaTitle":"Microchip MIC2549A-1YM-TR USB Power Switch, 3A, 35mOhm","metaDescription":"Active Microchip MIC2549A-1YM-TR high-side USB power switch, 3A continuous, 35mOhm Rds(on), adjustable current limit, slew-rate controlled, 8-SOIC. RoHS3.","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)","Features":"Slew Rate Controlled, Status Flag","Interface":"On/Off","Input Type":"Non-Inverting","Output Type":"N-Channel","Switch Type":"USB Switch","Rds On (Typ)":"35mOhm","Mounting Type":"Surface Mount","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","Voltage - Load":"2.7V ~ 5.5V","lifecycle_stage":"eol_hot","Fault Protection":"Current Limiting (Adjustable), Over Temperature, Reverse Current","Number of Outputs":"1","Output Configuration":"High Side","Ratio - Input:Output":"1:1","Operating Temperature":"-40°C ~ 85°C (TA)","Current - Output (Max)":"3A","Supplier Device Package":"8-SOIC","Voltage - Supply (Vcc/Vdd)":"Not Required"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$5.24","priceTiers":[{"qty":1,"price":"$5.24000","currency":"USD"},{"qty":25,"price":"$4.35680","currency":"USD"},{"qty":100,"price":"$3.97500","currency":"USD"},{"qty":2500,"price":"$3.97502","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/946edf9edc1682a4e0e17a2ae3124633.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/MIC2549A-1YM-TR/alternatives.json"},"ai":{"faq":[{"question":"What is the output current rating of MIC2549A-1YM-TR?","answer":"The continuous output current is rated at 3 A maximum. This figure applies at 25°C ambient with adequate PCB copper for heat sinking; derating is required at elevated ambient temperatures per the device's safe-operating-area curve."},{"question":"What fault protections does the MIC2549A-1YM-TR include?","answer":"The switch integrates adjustable current limiting (set by an external resistor), over-temperature shutdown, and reverse-current blocking. The reverse-current block prevents the output from back-driving the input when the load voltage exceeds the supply rail."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/MIC2549A-1YM-TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/MIC2549A-1YM-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}}