{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS2231MRGPT","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS2231MRGPT","canonicalUrl":"https://icboms.com/texas-instruments/TPS2231MRGPT","factsUrl":"https://icboms.com/api/mcp/products/TPS2231MRGPT","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS2231MRGPT ExpressCard™ power switch, high-side, 3 outputs, 45mOhm typ Rds(on), 1.3A max per channel, 1.5V/3.3V load, 20-QFN 4x4mm, -40°C to 85°C.","salesMarkdown":"## ExpressCard power switch with protection monitoring The Texas Instruments TPS2231MRGPT is a high-side power switch designed specifically for ExpressCard slots, delivering up to 1.3 A per channel across three independent outputs. It integrates Power Good and Status Flag outputs for system-level monitoring of each power rail. ## 45 mOhm on-resistance — conduction loss at 1.3 A Typical Rds(on) of 45 mOhm keeps conduction loss under 80 mW per channel at full load, which is manageable in the 20-QFN 4x4 mm package with exposed pad. Built-in fault protection includes fixed current limiting and over-temperature shutdown — no external sense resistor needed, saving board area in space-constrained card slot implementations. ## Obsolete — last-time-buy and sourcing reality The TPS2231MRGPT is marked as Obsolete in the lifecycle record. This means TI has discontinued production, and no further factory orders can be placed. Buyers should treat this as a last-time-buy part and secure inventory through independent distribution channels. No official replacement or cross-reference is listed in the available documentation. The TPS223 base product number suggests possible pin-compatible siblings within the family, but no direct successor has been announced. For existing designs, a qualified second source or redesign may be necessary.","metaTitle":"TPS2231MRGPT ExpressCard Switch, 45mOhm, 1.3A, Obsolete","metaDescription":"Texas Instruments TPS2231MRGPT high-side ExpressCard power switch, 3 outputs, 45mOhm Rds(on), 1.3A max, -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); 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":"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":"$1.6500","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/72301408950e308afbbf2507f3231a23.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPS2231MRGPT/alternatives.json"},"ai":{"faq":[{"question":"Is TPS2231MRGPT obsolete?","answer":"Yes, the TPS2231MRGPT is listed as Obsolete. Texas Instruments has discontinued production, and no further factory orders are accepted. The part is available only through independent distribution channels on a last-time-buy or surplus basis."},{"question":"What is the replacement for TPS2231MRGPT?","answer":"No official replacement or direct cross-reference is listed for the TPS2231MRGPT. The TPS223 family may include pin-compatible variants, but without a confirmed successor, buyers should evaluate the TPS223 series for potential alternatives or plan a redesign with a current-generation ExpressCard switch."},{"question":"Where can I buy TPS2231MRGPT?","answer":"The TPS2231MRGPT is obsolete and not available from the manufacturer. It can be sourced through independent distribution channels. Submit an RFQ for current availability and pricing — each quote is confirmed at order time with no stock-holding guarantee implied."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS2231MRGPT","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 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}}