{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS2231RGPR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS2231RGPR","canonicalUrl":"https://icboms.com/texas-instruments/TPS2231RGPR","factsUrl":"https://icboms.com/api/mcp/products/TPS2231RGPR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS2231RGPR ExpressCard™ switch, high-side, 45 mOhm Rds(on) typ, 1.3 A max output, 1.5 V/3.3 V load rails, 20-VFQFN exposed pad, -40°C to 85°C.","salesMarkdown":"## ExpressCard power switch with integrated protection The Texas Instruments TPS2231RGPR is a high-side power switch designed for ExpressCard slots, delivering up to 1.3 A continuous from either a 1.5 V or 3.3 V load rail. The 45 mOhm typical Rds(on) keeps conduction losses low enough that the 20-QFN package's exposed pad can dissipate the heat without forced airflow in most designs. Three independent high-side outputs share the single input, each with fixed current limiting and over-temperature protection. A Power Good output and a Status Flag provide the system controller with fault and rail-OK feedback. ## Protection scheme and load budget Fault protection is built in — current limiting (fixed, not adjustable) and thermal shutdown. No external sense resistor is needed, but the 1.3 A per-output ceiling is the hard limit; the load must stay below that at all temperatures. The Status Flag asserts low when a fault is detected, and the Power Good output indicates when the output voltage is within regulation. The switch operates without a separate Vcc/Vdd supply — it is self-powered from the load rail. The 1:1 input-to-output ratio means each output sees the full input current budget; the three outputs share the total 1.3 A, not 1.3 A each. Without that, the over-temperature protection may trip prematurely at high ambient or full load. The QFN package is MSL-3 typical for this class; bake and reflow profiles follow JEDEC standards.","metaTitle":"TPS2231RGPR ExpressCard Switch, 45 mOhm, 1.3 A, 20-QFN","metaDescription":"Texas Instruments TPS2231RGPR ExpressCard power switch, 45 mOhm Rds(on), 1.3 A max output, dual 1.5 V/3.3 V load rails, active production.","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/TPS2231RGPR/alternatives.json"},"ai":{"faq":[{"question":"What is the difference between TPS2231RGPR and TPS2231RGPT?","answer":"The TPS2231RGPR and TPS2231RGPT are electrically identical — same 45 mOhm Rds(on), same 1.3 A output, same protection features. The suffix difference is packaging: RGPR ships in Tape & Reel, while RGPT ships in a different reel or tube format. Confirm the reel quantity and carrier tape dimensions with the datasheet before ordering."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS2231RGPR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS2231RGPR 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}}