{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS2540ARTET","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS2540ARTET","canonicalUrl":"https://icboms.com/texas-instruments/TPS2540ARTET","factsUrl":"https://icboms.com/api/mcp/products/TPS2540ARTET","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS2540ARTET USB power switch, high-side N-channel, 73mOhm typ Rds(on), 2.5A max output, 4.5-5.5V load, 16-WQFN (3x3), -40 to 125°C, active.","salesMarkdown":"## 73 mOhm Rds(on) at 2.5 A — the thermal ceiling The TPS2540ARTET is a single-channel high-side USB power switch from Texas Instruments, built around an N-channel MOSFET with a typical on-resistance of 73 mOhm. At the 2.5 A maximum output, the conduction loss is I²R = 0.46 W — that heat must be sunk through the 16-WQFN exposed pad to a copper plane. The 73 mOhm figure is the starting point for the thermal budget; actual Rds(on) rises with junction temperature, so derate the current if the board ambient is above 85 °C. ## Protection suite: adjustable current limit, OTP, UVLO Three fault protections are integrated: current limiting that is adjustable via an external resistor, over-temperature shutdown, and under-voltage lockout on the load supply. The adjustable current limit is the key differentiator — it lets the designer set the trip point per USB port (standard downstream port vs charging port) without changing the switch IC. The Status Flag output (open-drain, active low) signals over-current or over-temperature events to the host controller, enabling a controlled port-power-down sequence rather than a hard latch. For volume BOMs, the active status removes the single-source risk that comes with NRND or EOL parts.","metaTitle":"TPS2540ARTET USB Power Switch, 2.5A, 73mOhm, -40 to 125°C","metaDescription":"Texas Instruments TPS2540ARTET USB power switch with 73mOhm Rds(on), 2.5A output, adjustable current limit, OTP, UVLO. Active lifecycle, -40 to 125°C.","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":"$1.3393","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/e339d18bad5e566ed5c2eecf1ba2cb9a.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPS2540ARTET/alternatives.json"},"ai":{"faq":[{"question":"Does TPS2540ARTET have over-temperature and current limiting protection?","answer":"Yes. The TPS2540ARTET integrates over-temperature shutdown, adjustable current limiting, and under-voltage lockout (UVLO) on the load supply. The current-limit threshold is set with an external resistor, giving the designer flexibility per port."},{"question":"Is TPS2540ARTET equivalent to TPS2540RTE?","answer":"The TPS2540ARTET and TPS2540RTE share the same base product number (TPS2540) and identical silicon. The difference is packaging: -ARTET is Tape & Reel / Cut Tape, while -RTE is typically reel-only. They are functionally equivalent."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS2540ARTET","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS2540ARTET 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}}