{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS2231MRGPR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS2231MRGPR","canonicalUrl":"https://icboms.com/texas-instruments/TPS2231MRGPR","factsUrl":"https://icboms.com/api/mcp/products/TPS2231MRGPR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS2231MRGPR, ExpressCard™ power switch, 3 high-side outputs, 45 mOhm typical Rds(on), 1.3 A per channel, 1.5 V / 3.3 V load supply, 20-VFQFN exposed pad, -40°C to 85°C.","salesMarkdown":"## ExpressCard slot power — three rails, one switch The TPS2231MRGPR is a dedicated ExpressCard™ power switch from Texas Instruments, integrating three high-side outputs to deliver the 1.5 V and 3.3 V rails an ExpressCard socket requires. Each output is rated for 1.3 A continuous, and the typical on-resistance of 45 mOhm keeps the voltage drop low enough that the card sees the full rail under load. ## Fault protection — fixed limits, no trimming The switch includes fixed current limiting and over-temperature shutdown. These are not adjustable — the trip thresholds are set internally, so the load profile must stay within the device's safe operating area without relying on external programming. The power-good and status-flag outputs give the system controller a clean handshake when the rails are within tolerance. ## Package and thermal — the exposed pad matters The surface-mount assembly must include a solder-paste stencil aperture covering at least 50% of the pad area to avoid voids, and the board layout should connect the pad to a ground plane for thermal relief. ## Temperature grade — industrial, not automotive It is not AEC-Q100 qualified, so it is not intended for under-hood or chassis-mounted automotive applications.","metaTitle":"TPS2231MRGPR ExpressCard Power Switch, 45 mOhm, 3 Outputs","metaDescription":"Texas Instruments TPS2231MRGPR ExpressCard power switch, 45 mOhm typical Rds(on), 3 outputs at 1.3 A each, -40°C to 85°C. 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":"$1.6695","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/72301408950e308afbbf2507f3231a23.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPS2231MRGPR/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to the TPS2231MRGPR?","answer":"The TPS2230 is a related ExpressCard switch in the same family, but the evidence does not confirm pin compatibility or a direct cross-reference. Verify the pinout and feature set against your BOM before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS2231MRGPR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS2231MRGPR 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}}