{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS2540ARTER","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS2540ARTER","canonicalUrl":"https://icboms.com/texas-instruments/TPS2540ARTER","factsUrl":"https://icboms.com/api/mcp/products/TPS2540ARTER","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS2540ARTER USB high-side power switch, single output, 73 mOhm Rds(on), 2.5 A max, adjustable current limit, over-temperature and UVLO protection, 16-WQFN (3x3 mm), -40°C to 125°C.","salesMarkdown":"The TPS2540ARTER is a single-channel USB high-side switch from Texas Instruments, built to power a USB host port or a dedicated charging port with a continuous 2.5 A output. The 73 mOhm typical on-resistance is the number that sets the voltage drop from input to output at full load — at 2.5 A that drop is about 180 mV, so the load side still sees a solid 4.8 V from a 5 V rail. ## Fault protection set — adjustable current limit, over-temperature, UVLO The fault-protection stack covers the three failure modes that kill a USB port: a shorted cable (adjustable current limit), a stalled fan or hot-plug surge (over-temperature shutdown), and a sagging 5 V rail (UVLO). The current limit is adjustable with a single resistor, so the same board can be configured for a 500 mA legacy port or a 2.5 A charging port by changing one BOM value. The Status Flag output (open-drain, active low) tells the host controller that the switch has hit the limit or shut down — no polling, no software loop. That means no last-time-buy window to chase, no surplus-market scramble.","metaTitle":"Texas Instruments TPS2540ARTER USB Switch, 73 mOhm, 2.5 A","metaDescription":"Texas Instruments TPS2540ARTER USB high-side switch, 73 mOhm Rds(on), 2.5 A output, adjustable current limit, -40°C to 125°C. Active.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"Texas Instruments","Series":"-","Package":"Tape & Reel (TR); Cut Tape (CT)","Features":"Status Flag","Interface":"On/Off","Input Type":"Non-Inverting","Output Type":"N-Channel","Switch Type":"USB Switch","Rds On (Typ)":"73mOhm","Mounting Type":"Surface Mount","Package / Case":"16-WFQFN Exposed Pad","Product Status":"Active","Voltage - Load":"4.5V ~ 5.5V","lifecycle_stage":"eol_hot","Fault Protection":"Current Limiting (Adjustable), Over Temperature, UVLO","Number of Outputs":"1","Base Product Number":"TPS2540","Output Configuration":"High Side","Ratio - Input:Output":"1:1","Operating Temperature":"-40°C~125°C(TJ)","Current - Output (Max)":"2.5A","Supplier Device Package":"16-WQFN (3x3)","Voltage - Supply (Vcc/Vdd)":"Not Required"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.9030","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/e339d18bad5e566ed5c2eecf1ba2cb9a.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPS2540ARTER/alternatives.json"},"ai":{"faq":[{"question":"What is the Rds(on) of TPS2540ARTER?","answer":"The typical Rds(on) is 73 mOhm. That is the on-resistance at 25°C with a 5 V gate drive — the number you use to calculate the voltage drop and the I²R heating at your load current."},{"question":"What fault protection does TPS2540ARTER provide?","answer":"It provides adjustable current limiting, over-temperature shutdown, and under-voltage lockout (UVLO). The current limit is set with a single external resistor, so you can configure the port for 500 mA or 2.5 A without changing the switch itself."},{"question":"Is TPS2540ARTER a direct replacement for TPS2540?","answer":"The TPS2540ARTER shares the same base product number (TPS2540) and the same function — single USB high-side switch with adjustable current limit. The 'RTER' suffix indicates the tape-and-reel packaging variant. Electrically and pin-for-pin it is the same die in the same 16-WQFN package."},{"question":"Is the TPS2540ARTER compatible with USB 2.0?","answer":"Yes. The switch is a power-path device — it handles the VBUS rail. The data lines (D+ and D-) are not switched by this part; they pass through the host controller or a separate data switch. The 73 mOhm Rds(on) and 2.5 A current rating meet the USB 2.0 power delivery requirements for a standard downstream port or a dedicated charging port."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS2540ARTER","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS2540ARTER when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T18:03:28.771Z","lastPublished":"2026-07-22T18:03:28.771Z","indexable":true}}