{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS2231RGPTG4","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS2231RGPTG4","canonicalUrl":"https://icboms.com/texas-instruments/TPS2231RGPTG4","factsUrl":"https://icboms.com/api/mcp/products/TPS2231RGPTG4","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS2231RGPTG4 ExpressCard™ power switch, 3-output high-side, 45 mOhm Rds(on), 1.3 A per output, 1.5 V / 3.3 V load, Power Good & Status Flag, -40°C to 85°C, 20-QFN (4x4 mm).","salesMarkdown":"## ExpressCard slot power switch — three outputs, two rails The Texas Instruments TPS2231RGPTG4 is a three-output high-side power switch designed for ExpressCard™ slots. It switches the 1.5 V and 3.3 V rails that an ExpressCard module expects, with each of the three outputs rated for 1.3 A continuous. Typical on-resistance is 45 mOhm. The fixed current-limiting and over-temperature protection handle fault conditions without an external sense resistor. ## Power Good and Status Flag — host-side visibility Power Good and Status Flag outputs let the host controller know the output rail is within regulation or that a fault (over-current, over-temperature) has occurred. No polling of the output voltage is needed — the flags are open-drain and can be wired directly to a GPIO. ## Package and supply — QFN-20, no Vcc required Housed in a 20-VFQFN exposed-pad package (4x4 mm body), the TPS2231RGPTG4 is surface-mount and requires no Vcc supply pin — the switch is self-powered from the load rails.","metaTitle":"TI TPS2231RGPTG4 ExpressCard Power Switch, 45 mOhm, 1.3 A","metaDescription":"Texas Instruments TPS2231RGPTG4 ExpressCard™ power switch, 45 mOhm Rds(on), 1.3 A per output, 1.5V/3.3V load, Power Good & Status Flag, QFN-20, active","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)","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","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":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/72301408950e308afbbf2507f3231a23.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPS2231RGPTG4/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS2231RGPTG4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS2231RGPTG4 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}}