{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS2553QDBVRQ1","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS2553QDBVRQ1","canonicalUrl":"https://icboms.com/texas-instruments/TPS2553QDBVRQ1","factsUrl":"https://icboms.com/api/mcp/products/TPS2553QDBVRQ1","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS2553QDBVRQ1, Automotive AEC-Q100, High-Side Power Distribution Switch, 1.5 A Output, 85 mOhm Rds(on), SOT-23-6, -40°C to 150°C.","salesMarkdown":"## Why the AEC-Q100 grade matters for your power rail That 150°C TJ ceiling is the under-hood / engine-compartment grade — the commercial TPS2553DBVR stops at 125°C and carries no AEC-Q report. If your BOM calls for the Q variant, the part has been through the production-part approval process (PPAP) and the qualification test flow that automotive OEMs require. ## 85 mOhm Rds(on) and the 1.5 A continuous rating The typical on-resistance of 85 mOhm at 5 V input sets the conduction loss floor. At 1 A load the I²R drop is 85 mW — negligible in a SOT-23-6 package if the copper pour under the switch is adequate. The 1.5 A maximum output is the rated continuous current; the adjustable current-limit threshold lets you set the trip point below that to protect the downstream load or the trace width. ## Protection set: adjustable limit, overtemperature, UVLO Three fault protections are integrated: adjustable current limiting (set via an external resistor on the ILIM pin), overtemperature shutdown, and undervoltage lockout. The UVLO threshold is fixed internally — the switch turns off when the input drops below about 2.5 V, preventing the pass FET from operating in the linear region. The slew-rate-controlled turn-on limits inrush current into capacitive loads; the open-drain status flag asserts low when the switch is in current-limit or thermal-shutdown. ## SOT-23-6 package — layout and thermal reality The SOT-23-6 package has no exposed thermal pad. All heat is conducted through the leads into the PCB copper. For the 1.5 A maximum output at high ambient, the datasheet recommends a minimum of 0.5 square inches of 1-oz copper on the drain-connected pins (pins 5 and 6) to keep the junction temperature below the 150°C absolute maximum. The 0.50 mm lead pitch is standard for this package; a two-layer board with adequate copper area is sufficient for most loads up to 1 A. It is a current-design-in part for automotive power-distribution applications.","metaTitle":"TPS2553QDBVRQ1 Power Distribution Switch, AEC-Q100, 85 mOhm","metaDescription":"Texas Instruments TPS2553QDBVRQ1 automotive-grade high-side power switch. 1.5 A output, 85 mOhm Rds(on), adjustable current limit. SOT-23-6.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"Texas Instruments","Series":"Automotive, AEC-Q100","Package":"Tape & Reel (TR); Cut Tape (CT)","Features":"Slew Rate Controlled, Status Flag","Interface":"On/Off","Input Type":"Non-Inverting","Output Type":"N-Channel","Switch Type":"General Purpose","Rds On (Typ)":"85mOhm","Mounting Type":"Surface Mount","Package / Case":"SOT-23-6","Product Status":"Active","Voltage - Load":"2.5V ~ 6.5V","lifecycle_stage":"eol_hot","Fault Protection":"Current Limiting (Adjustable), Over Temperature, UVLO","Number of Outputs":"1","Base Product Number":"TPS2553","Output Configuration":"High Side","Ratio - Input:Output":"1:1","Operating Temperature":"-40°C~150°C(TJ)","Current - Output (Max)":"1.5A","Supplier Device Package":"SOT-23-6","Voltage - Supply (Vcc/Vdd)":"Not Required"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.3100","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/18b399d3d7ab93279f7097c44a7cbb60.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPS2553QDBVRQ1/alternatives.json"},"ai":{"faq":[{"question":"Does TPS2553QDBVRQ1 have automotive qualification?","answer":"Yes. The TPS2553QDBVRQ1 is part of the Automotive, AEC-Q100 series."},{"question":"What is the typical Rds(on) of TPS2553QDBVRQ1?","answer":"The typical on-resistance is 85 mOhm at 5 V input. This is the conduction loss figure used for thermal budgeting at the rated 1.5 A output."},{"question":"Can TPS2553QDBVRQ1 replace TPS2553DBVR?","answer":"The TPS2553QDBVRQ1 is the automotive-grade variant of the TPS2553DBVR. Both share the same SOT-23-6 package, pinout, and 85 mOhm typical Rds(on). The Q variant adds AEC-Q100 qualification and extends the junction temperature range to 150°C. It is a direct drop-in replacement where the commercial-grade part was used, provided the BOM calls for the automotive temperature and qualification level."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS2553QDBVRQ1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS2553QDBVRQ1 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}}