{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS2549IRTERQ1","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS2549IRTERQ1","canonicalUrl":"https://icboms.com/texas-instruments/TPS2549IRTERQ1","factsUrl":"https://icboms.com/api/mcp/products/TPS2549IRTERQ1","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS2549IRTERQ1, Automotive USB Power Switch, 47 mOhm typical Rds(on), 3 A max output, AEC-Q100 qualified, 16-WQFN exposed pad package.","salesMarkdown":"## Why the 47 mOhm Rds(on) and 3 A rating matter for your USB port The TPS2549IRTERQ1 is a single-channel high-side USB power switch from Texas Instruments, built for automotive USB ports where the load is a phone or tablet charging at up to 3 A. The 47 mOhm typical on-resistance means the voltage drop across the switch at 3 A is roughly 140 mV — low enough to keep the output above 4.75 V from a 5 V rail, which is the USB 2.0 minimum for a high-power port. The 4.5 V to 6.5 V load supply range covers the 5 V nominal bus plus the dips during engine cranking without dropping out. ## Fault protection set — adjustable current limit, OVP, UVLO, thermal shutdown The switch integrates adjustable current limiting, over-voltage protection, under-voltage lockout, and over-temperature shutdown. The current limit is set with an external resistor, so you can tailor the trip point to the cable impedance and downstream device. OVP clamps the output if the input bus spikes above the normal range — a real risk on automotive power rails during load dump or alternator ripple. UVLO holds the switch off until the input rises above the 4.5 V threshold, preventing the switch from operating in a brownout condition. ## Active production — sourcing posture for this automotive-grade part The package is a 16-WFQFN with an exposed pad, 3 mm x 3 mm, tape-and-reel or cut-tape options. ## Package and footprint — 16-WQFN with exposed pad The supplier device package is 16-WQFN (3x3 mm) with an exposed pad. The package is surface-mount only; no through-hole variant exists.","metaTitle":"TPS2549IRTERQ1 – Automotive USB Power Switch, 47 mOhm, 3 A","metaDescription":"Texas Instruments TPS2549IRTERQ1 automotive USB power switch. 47 mOhm typical Rds(on), 3 A output, AEC-Q100 qualified. Active production. Sourced per RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"Texas Instruments","Grade":"Automotive","Series":"-","Package":"Tape & Reel (TR) Cut Tape (CT)","Features":"Load Discharge, Status Flag","Interface":"On/Off","Input Type":"Non-Inverting","Output Type":"N-Channel","Switch Type":"USB Switch","Rds On (Typ)":"47mOhm","Mounting Type":"Surface Mount","Qualification":"AEC-Q100","Package / Case":"16-WFQFN Exposed Pad","Product Status":"Active","Voltage - Load":"4.5V ~ 6.5V","lifecycle_stage":"eol_hot","Fault Protection":"Current Limiting (Adjustable), Over Temperature, Over Voltage, UVLO","Number of Outputs":"1","Base Product Number":"TPS2549","Output Configuration":"High Side","Ratio - Input:Output":"1:1","Operating Temperature":"-40°C ~ 125°C (TJ)","Current - Output (Max)":"3A","Supplier Device Package":"16-WQFN (3x3)","Voltage - Supply (Vcc/Vdd)":"Not Required"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.6700","priceTiers":[{"qty":1,"price":"$2.67000","currency":"USD"},{"qty":10,"price":"$2.40100","currency":"USD"},{"qty":25,"price":"$2.26480","currency":"USD"},{"qty":100,"price":"$1.92970","currency":"USD"},{"qty":250,"price":"$1.81192","currency":"USD"},{"qty":500,"price":"$1.58544","currency":"USD"},{"qty":1000,"price":"$1.31366","currency":"USD"},{"qty":3000,"price":"$1.22306","currency":"USD"},{"qty":6000,"price":"$1.17776","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/5359380471bfd5a5e232696df4cc807b.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPS2549IRTERQ1/alternatives.json"},"ai":{"faq":[{"question":"Is TPS2549IRTERQ1 AEC-Q100 qualified?","answer":"Yes, the TPS2549IRTERQ1 is AEC-Q100 qualified, which means it has passed automotive-grade reliability testing including extended temperature range and high-temperature operating life."},{"question":"What is the difference between TPS2549IRTERQ1 and TPS2549IRTER?","answer":"The TPS2549IRTERQ1 is the automotive-grade variant with AEC-Q100 qualification. The TPS2549IRTER may be the commercial-grade version without the automotive stress testing. For automotive applications, use the Q1 suffix part."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS2549IRTERQ1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS2549IRTERQ1 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}}