{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS2544RTER","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS2544RTER","canonicalUrl":"https://icboms.com/texas-instruments/TPS2544RTER","factsUrl":"https://icboms.com/api/mcp/products/TPS2544RTER","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS2544RTER, USB high-side power switch, 1:1 N-channel, 4.5V–5.5V load, 3A max output, 73mOhm typical Rds(on), 16-WQFN (3x3mm) exposed pad, -40°C to 125°C junction.","salesMarkdown":"## 3A USB high-side switch with adjustable current limit The TPS2544RTER is a single-channel N-channel high-side USB power switch from Texas Instruments, delivering up to 3A continuous output from a 4.5V to 5.5V load supply. Typical on-resistance is 73mOhm, keeping conduction loss low enough that a 3A load drops only about 220mV across the switch — important for maintaining 5V regulation at the USB connector. It integrates adjustable current limiting, over-temperature protection, and undervoltage lockout (UVLO), so you can set the trip threshold with a single resistor and skip an external current-sense amplifier. The On/Off interface and non-inverting input simplify enable logic — no level shifting needed for a 3.3V or 5V GPIO. At 3A, the 73mOhm typical Rds(on) produces about 0.66W of dissipation inside the 16-WQFN package. The adjustable current limit lets you set the threshold anywhere below 3A to protect the upstream regulator or connector. A 0.5% resistor sets the limit with ±10% accuracy typical; the UVLO threshold is fixed internally at about 4.0V rising, so the switch stays off until the 5V rail is stable. ## Active production — sourcing and compliance Texas Instruments lists no end-of-life notice as of the latest revision. No stock-holding claim; availability is per RFQ.","metaTitle":"TPS2544RTER USB Power Switch – 3A, 73mOhm, 16-WQFN","metaDescription":"Texas Instruments TPS2544RTER USB high-side switch: 3A max output, 73mOhm Rds(on), -40°C to 125°C, adjustable current limit. Active, ROHS3. Request quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"Texas Instruments","Series":"-","Package":"Tape & Reel (TR); Cut Tape (CT)","Features":"-","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":"TPS2544","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":"$1.4300","priceTiers":[{"qty":1,"price":"$1.43000","currency":"USD"},{"qty":10,"price":"$1.28200","currency":"USD"},{"qty":25,"price":"$1.21680","currency":"USD"},{"qty":100,"price":"$0.99960","currency":"USD"},{"qty":250,"price":"$0.93440","currency":"USD"},{"qty":500,"price":"$0.82574","currency":"USD"},{"qty":1000,"price":"$0.65190","currency":"USD"},{"qty":3000,"price":"$0.61500","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/784d2840b2aea8d2737fb2839e70e8a5.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPS2544RTER/alternatives.json"},"ai":{"faq":[{"question":"What is the maximum current capability of TPS2544RTER?","answer":"The maximum continuous output current is 3A. The adjustable current limit can be set below 3A using an external resistor; the switch itself is rated for 3A continuous at 25°C ambient with proper thermal management."},{"question":"Does TPS2544RTER require an external MOSFET?","answer":"No. The TPS2544RTER integrates the N-channel power MOSFET and gate drive internally. It is a self-contained high-side switch — just connect the load supply, enable pin, and output to the USB connector."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS2544RTER","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS2544RTER 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}}