{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS2231MRGPT-3","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS2231MRGPT-3","canonicalUrl":"https://icboms.com/texas-instruments/TPS2231MRGPT-3","factsUrl":"https://icboms.com/api/mcp/products/TPS2231MRGPT-3","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS2231MRGPT-3, ExpressCard Switch, 3 outputs, 1.3 A max per channel, 45 mOhm Rds(on), 1.5V/3.3V load, 20-QFN (4x4), -40°C to 85°C.","salesMarkdown":"## Three-channel high-side switch for ExpressCard and hot-swap rails It switches dual voltage rails — 1.5 V and 3.3 V — with a typical on-resistance of 45 mOhm per channel, each rated to deliver up to 1.3 A continuously. ## Protection and status — fixed current limit, over-temp, power-good flag Built-in fault protection includes fixed current limiting and over-temperature shutdown, so the switch survives a shorted load or sustained overload without external sense resistors. A power-good output and a status flag give the host controller visibility into the switch state — useful for sequencing or fault logging. ## Package and thermal — 20-QFN with exposed pad The 1.3 A per-channel rating assumes the PCB copper area under the pad is sized for the total dissipation — at full load on all three channels, the 45 mOhm Rds(on) produces about 0.23 W, which the pad can handle with a reasonable 2-layer board layout. No Vcc supply pin is needed — the switch is self-powered from the load rail.","metaTitle":"TPS2231MRGPT-3 ExpressCard Switch, 45 mOhm, 1.3 A, Active","metaDescription":"Texas Instruments TPS2231MRGPT-3 ExpressCard switch, 3 outputs at 1.3 A, 45 mOhm Rds(on), dual 1.5V/3.3V load, active lifecycle.","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":"Power Good, Status Flag","Interface":"-","Input Type":"-","Output Type":"-","Switch Type":"ExpressCard™ Switch","Rds On (Typ)":"45mOhm","Mounting Type":"Surface Mount","Package / Case":"20-VFQFN Exposed Pad","Product Status":"Active","Voltage - Load":"1.5V, 3.3V","lifecycle_stage":"eol_hot","Fault Protection":"Current Limiting (Fixed), Over Temperature","Number of Outputs":"3","Base Product Number":"TPS2231","Output Configuration":"High Side","Ratio - Input:Output":"1:1","Operating Temperature":"-40°C~85°C(TA)","Current - Output (Max)":"1.3A","Supplier Device Package":"20-QFN (4x4)","Voltage - Supply (Vcc/Vdd)":"Not Required"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.7395","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/72301408950e308afbbf2507f3231a23.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPS2231MRGPT-3/alternatives.json"},"ai":{"faq":[{"question":"Is TPS2231MRGPT-3 compatible with 3.3 V logic?","answer":"Yes — the switch handles a 3.3 V load rail directly, and the enable and status pins interface with 3.3 V logic without level translation."},{"question":"What is the typical application of TPS2231MRGPT-3?","answer":"It is designed for ExpressCard slot power switching, but also suits any hot-swap or power-distribution application needing three independent high-side channels at 1.3 A with dual-voltage (1.5 V / 3.3 V) capability."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS2231MRGPT-3","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS2231MRGPT-3 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}}