{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS2205IDAPR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS2205IDAPR","canonicalUrl":"https://icboms.com/texas-instruments/TPS2205IDAPR","factsUrl":"https://icboms.com/api/mcp/products/TPS2205IDAPR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS2205IDAPR, PCMCIA power switch, 4 high-side outputs, 1 A per channel, 103 mOhm typical Rds(on), parallel interface, status flag, 32-HTSSOP exposed pad, -40°C to 85°C.","salesMarkdown":"## PCMCIA slot power — why a dedicated switch matters The TPS2205IDAPR is a four-channel high-side PCMCIA power switch from Texas Instruments, purpose-built for the three-rail sequencing (3.3 V, 5 V, and 12 V) that PC Card slots require. The 103 mOhm typical on-resistance per output keeps the voltage drop to about 100 mV at the 1 A continuous current limit, which is tight for the 3.3 V rail where margin is already thin. A general-purpose load switch won't handle the 12 V Vpp programming rail or the status-flag handshake that the host controller expects. ## Rds(on) and thermal budget in the HTSSOP package At 1 A per output, each channel dissipates roughly 103 mW from conduction loss alone. The fixed current-limiting and over-temperature protection prevent cascade failure if a card draws more than 1 A, but the thermal pad is still the primary heat path; a two-layer board with minimal copper under the pad will push the junction temperature above 85 °C in still air. That said, the PCMCIA interface is a legacy bus; new designs have largely migrated to SDIO or embedded flash.","metaTitle":"TPS2205IDAPR PCMCIA Switch, 4-Channel, 103 mOhm, 32-HTSSOP","metaDescription":"Texas Instruments TPS2205IDAPR PCMCIA power switch, 4 outputs, 1 A each, 103 mOhm Rds(on), parallel interface, status flag, 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":"Status Flag","Interface":"Parallel","Input Type":"-","Output Type":"-","Switch Type":"PCMCIA Switch","Rds On (Typ)":"103mOhm","Mounting Type":"Surface Mount","Package / Case":"32-TSSOP (0.240\\\", 6.10mm Width) Exposed Pad","Product Status":"Active","Voltage - Load":"3.3V, 5V, 12V","lifecycle_stage":"eol_hot","Fault Protection":"Current Limiting (Fixed), Over Temperature","Number of Outputs":"4","Base Product Number":"TPS2205","Output Configuration":"High Side","Ratio - Input:Output":"3:4","Operating Temperature":"-40°C~85°C(TA)","Current - Output (Max)":"1A","Supplier Device Package":"32-HTSSOP","Voltage - Supply (Vcc/Vdd)":"Not Required"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.0260","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/ec947e78298ef43443a0a9084f1076cd.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPS2205IDAPR/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS2205IDAPR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS2205IDAPR 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}}