{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS2051BDG4","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS2051BDG4","canonicalUrl":"https://icboms.com/texas-instruments/TPS2051BDG4","factsUrl":"https://icboms.com/api/mcp/products/TPS2051BDG4","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS2051BDG4 high-side power switch, 1 output, 70 mOhm Rds(on) typical, 500 mA max, 2.7V to 5.5V load, -40°C to 125°C, 8-SOIC, Active.","salesMarkdown":"The TPS2051BDG4 is a single-channel high-side power switch from Texas Instruments, built for general-purpose power distribution with a typical on-resistance of 70 mOhm. That figure governs the voltage drop across the switch at full load: at 500 mA the drop is about 35 mV, which keeps the output voltage well within the 4.75 V minimum for a USB 2.0 downstream port. ## Built-in fault protection trims the BOM Three protection circuits are integrated: fixed current limiting, over-temperature shutdown, and under-voltage lockout (UVLO). The over-temperature trip protects the die if the load fault persists, and UVLO holds the switch off until the input supply rises above the threshold. This protection set is standard for USB hub and host port implementations where the port must survive a shorted cable without damage to the upstream supply. For a procurement desk qualifying a new BOM line, this avoids the supply-chain gymnastics of a phase-out part. The base product number is TPS2051, so any PCN or datasheet revision will roll under that root — watch for the suffix (-BDG4) when matching date codes or alternate package variants.","metaTitle":"TPS2051BDG4 USB Power Switch, 70mOhm, 500mA, Active","metaDescription":"Texas Instruments TPS2051BDG4 high-side power switch, 70 mOhm Rds(on), 500 mA output, -40°C to 125°C. 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":"Tube","Features":"Status Flag","Interface":"On/Off","Input Type":"Non-Inverting","Output Type":"N-Channel","Switch Type":"General Purpose","Rds On (Typ)":"70mOhm","Mounting Type":"Surface Mount","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","Voltage - Load":"2.7V ~ 5.5V","lifecycle_stage":"eol_hot","Fault Protection":"Current Limiting (Fixed), Over Temperature, UVLO","Number of Outputs":"1","Base Product Number":"TPS2051","Output Configuration":"High Side","Ratio - Input:Output":"1:1","Operating Temperature":"-40°C~125°C(TJ)","Current - Output (Max)":"500mA","Supplier Device Package":"8-SOIC","Voltage - Supply (Vcc/Vdd)":"Not Required"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.5500","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/fd9b875e52b121c213f56fbd3fcd8141.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPS2051BDG4/alternatives.json"},"ai":{"faq":[{"question":"Does TPS2051BDG4 support overcurrent protection for USB applications?","answer":"Yes. The switch includes fixed current limiting that clamps the output during an overcurrent event, along with over-temperature shutdown and UVLO. These three protections cover the USB short-circuit and hot-plug transient cases."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS2051BDG4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS2051BDG4 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}}