{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS2231MRGPR-1","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS2231MRGPR-1","canonicalUrl":"https://icboms.com/texas-instruments/TPS2231MRGPR-1","factsUrl":"https://icboms.com/api/mcp/products/TPS2231MRGPR-1","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS2231MRGPR-1 ExpressCard™ power switch, 3 high-side outputs, 1.3 A max per channel, 45 mOhm typical Rds(on), 1.5 V / 3.3 V load, 20-QFN (4x4) package, -40°C to 85°C.","salesMarkdown":"## ExpressCard power switch — what this part does The Texas Instruments TPS2231MRGPR-1 is a high-side power-distribution switch designed specifically for ExpressCard™ slots. It integrates three outputs rated at 1.3 A each, with a typical on-resistance of 45 mOhm, and handles the dual-rail load of 1.5 V and 3.3 V that ExpressCard cards require. Built-in fault protection includes fixed current limiting and over-temperature shutdown, plus a power-good output and a status flag for system monitoring. No official replacement or successor part is listed by the manufacturer. Any pin-compatible substitute will need to be validated against the ExpressCard power sequence and the 45 mOhm Rds(on) target, particularly the 1.3 A per-output current rating and the 1.5 V / 3.3 V rail combination. ## Package and footprint — QFN rework notes","metaTitle":"TPS2231MRGPR-1 ExpressCard Power Switch, 45 mOhm, Obsolete","metaDescription":"Texas Instruments TPS2231MRGPR-1 ExpressCard switch, 3 outputs at 1.3 A, 45 mOhm Rds(on), -40°C to 85°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"Texas Instruments","Series":"-","Package":"Tape & Reel (TR)","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":"Obsolete","Voltage - Load":"1.5V, 3.3V","lifecycle_stage":"eol_hot","Fault Protection":"Current Limiting (Fixed), Over Temperature","Number of Outputs":"3","Base Product Number":"TPS223","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":"$1.2400","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/72301408950e308afbbf2507f3231a23.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPS2231MRGPR-1/alternatives.json"},"ai":{"faq":[{"question":"What is the replacement for TPS2231MRGPR-1?","answer":"No official replacement or successor part is listed by Texas Instruments. A pin-compatible substitute would need to match the ExpressCard switch function, three high-side outputs at 1.3 A, 45 mOhm Rds(on), and dual 1.5 V / 3.3 V load rails. Validate any candidate against the original power-good and status-flag timing."},{"question":"What are the key features of the TPS2231MRGPR-1?","answer":"The TPS2231MRGPR-1 is an ExpressCard power switch with three high-side outputs, each rated at 1.3 A. It includes power-good and status-flag outputs, fixed current limiting, and over-temperature protection."},{"question":"What package does the TPS2231MRGPR-1 come in?","answer":"The TPS2231MRGPR-1 is supplied in a 20-VFQFN with exposed pad, also designated as 20-QFN (4x4). The only listed packaging option is Tape & Reel."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS2231MRGPR-1","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-1 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}}