{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS2231RGPT","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS2231RGPT","canonicalUrl":"https://icboms.com/texas-instruments/TPS2231RGPT","factsUrl":"https://icboms.com/api/mcp/products/TPS2231RGPT","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS2231RGPT ExpressCard™ power switch, 3 high-side outputs, 45 mOhm Rds(on) typ, 1.3 A per channel, dual load voltage 1.5 V / 3.3 V, 20-VFQFN exposed pad, -40°C to 85°C.","salesMarkdown":"## ExpressCard slot power — one-chip solution The Texas Instruments TPS2231RGPT is a three-output high-side power switch designed specifically for ExpressCard™ slots, delivering the 1.5 V and 3.3 V rails required by the standard from a single controller. Each of the three outputs can source up to 1.3 A, with a typical Rds(on) of 45 mOhm — at full load the conduction loss per channel is about 76 mW, well within the thermal capability of the 20-QFN with exposed pad. ## Fault protection built in — no external sense resistor The Power Good and Status Flag outputs give the host controller a clean handshake for slot power sequencing. The switch operates without a Vcc/Vdd supply pin — the load voltage itself powers the gate drive, so the only external connections are the input rail, the three output channels, and the flag pins.","metaTitle":"TPS2231RGPT ExpressCard Power Switch, 45 mOhm, 1.3 A","metaDescription":"TI TPS2231RGPT ExpressCard switch, 3 outputs, 45 mOhm Rds(on), 1.3 A max, -40°C to 85°C, 20-QFN. 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":"$3.7500","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/72301408950e308afbbf2507f3231a23.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPS2231RGPT/alternatives.json"},"ai":{"faq":[{"question":"What voltage and current ratings does TPS2231RGPT support?","answer":"Each of the three outputs is rated for 1.3 A maximum continuous current. The switch handles load voltages of 1.5 V and 3.3 V — the two rails required by the ExpressCard standard."},{"question":"What protection features does TPS2231RGPT include?","answer":"Fixed current limiting and over-temperature protection are built in. The Power Good and Status Flag outputs provide the host controller with slot power status for sequencing."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS2231RGPT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS2231RGPT 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}}