{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS2557QDRBRQ1","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS2557QDRBRQ1","canonicalUrl":"https://icboms.com/texas-instruments/TPS2557QDRBRQ1","factsUrl":"https://icboms.com/api/mcp/products/TPS2557QDRBRQ1","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS2557QDRBRQ1, Automotive AEC-Q100 high-side power switch, 1 output, 22 mOhm typ Rds(on), 5 A max output, adjustable current limiting, 8-VDFN exposed pad, -40°C to 125°C.","salesMarkdown":"## 22 mOhm Rds(on) — the conduction-loss ceiling The TPS2557QDRBRQ1 is a single-channel high-side power switch from TI, AEC-Q100 qualified for automotive electronics. Its 22 mOhm typical Rds(on) means the voltage drop across the switch at 5 A output is roughly 110 mV — low enough that the load sees the full rail voltage even under heavy current, and the package self-heating stays manageable in a 3x3 mm SON. ## Adjustable current limit — sizing the protection threshold The current limit is adjustable via an external resistor. That lets you set the trip point just above the worst-case load current — no headroom padding needed. Combined with over-temperature shutdown and undervoltage lockout, the part protects both the switch and the downstream electronics from a hard short or a dead battery crank. The 8-VDFN exposed pad draws heat into the PCB copper plane — in a 4-layer board with thermal vias, the effective RthJA stays low enough to sustain 5 A continuous at 105°C ambient. Listed as active.","metaTitle":"TPS2557QDRBRQ1 Automotive Power Switch, AEC-Q100, 22 mOhm","metaDescription":"Texas Instruments TPS2557QDRBRQ1 high-side power switch, AEC-Q100 qualified, 22 mOhm Rds(on), 5 A output, adjustable current limit, -40°C 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":"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)":"22mOhm","Mounting Type":"Surface Mount","Package / Case":"8-VDFN Exposed Pad","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":"TPS2557","Output Configuration":"High Side","Ratio - Input:Output":"1:1","Operating Temperature":"-40°C~125°C(TJ)","Current - Output (Max)":"5A","Supplier Device Package":"8-SON (3x3)","Voltage - Supply (Vcc/Vdd)":"Not Required"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.7080","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/a4fb8a371ca463f3178c4611cee4de6a.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPS2557QDRBRQ1/alternatives.json"},"ai":{"faq":[{"question":"Is TPS2557QDRBRQ1 AEC-Q100 qualified?","answer":"Yes, it is listed as Automotive, AEC-Q100. That means it has passed the automotive stress tests for temperature cycling, ESD, and lifetime reliability — suitable for production in passenger-vehicle ECUs and ADAS modules."},{"question":"What is the Rds(on) of TPS2557QDRBRQ1?","answer":"Typical on-resistance is 22 mOhm. This is the conduction-loss figure at the nominal supply voltage — actual Rds(on) increases with junction temperature, so budget a 30-40% rise at 125°C for worst-case thermal analysis."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS2557QDRBRQ1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS2557QDRBRQ1 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}}