{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS2051DG4","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS2051DG4","canonicalUrl":"https://icboms.com/texas-instruments/TPS2051DG4","factsUrl":"https://icboms.com/api/mcp/products/TPS2051DG4","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS2051DG4, high-side power-distribution switch, 1 output, 80 mOhm Rds(on) typ, 500 mA max, 2.7 V to 5.5 V load, 8-SOIC, -40 to 125 °C.","salesMarkdown":"## 80 mOhm switch for 500 mA rails — the conduction loss floor The switch requires no external Vcc supply; the gate drive is derived from the load voltage itself. ## Fault protection and the status flag — what trips and what reports Three built-in protection circuits guard the switch and the load: fixed current limiting (clamps the output at a safe level during an overload), over-temperature shutdown (latches off the switch if the die exceeds the thermal threshold), and under-voltage lockout (holds the output off until the input rail is above the UVLO threshold). A status-flag output (open-drain, active low) asserts when the switch is in current-limit or thermal-shutdown — this lets a system supervisor or GPIO detect a fault without polling the output voltage. The flag is the only feedback path; there is no separate enable pin with a logic threshold — the On/Off interface is non-inverting, so a logic high on the enable input turns the switch on. ## Industrial temperature range — where it goes and what that buys you The 125 °C junction ceiling means the part can dissipate the conduction loss (I² × Rds(on)) in a warm enclosure without derating the output current — but the 500 mA maximum is an absolute limit, not a derated figure, so at high ambient the thermal shutdown provides the safety margin.","metaTitle":"TPS2051DG4 Texas Instruments Power Switch, 80 mOhm, 500 mA","metaDescription":"TI TPS2051DG4 high-side power switch, 80 mOhm Rds(on), 500 mA output, active lifecycle, -40 to 125 °C.","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)":"80mOhm","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":"$58.8000","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/5333477528744b575674c7f3fc57a7b3.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPS2051DG4/alternatives.json"},"ai":{"faq":[{"question":"What is the TPS2051DG4 used for?","answer":"Typical applications include USB port power switching, peripheral-rail gating, and hot-swap supply sequencing in industrial, telecom, and consumer equipment. The status-flag output allows a system controller to detect over-current or over-temperature faults."},{"question":"What is the closest pin-compatible alternative to TPS2051DG4?","answer":"The TPS2051 family includes multiple output-current and package variants, but the DG4 suffix (8-SOIC, Tube, 500 mA) is the specific ordering configuration. For dual-sourcing, review the TPS2051B or TPS206x series from TI — confirm pin compatibility against the datasheet before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS2051DG4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS2051DG4 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}}