{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS74634PQWDRBRQ1","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS74634PQWDRBRQ1","canonicalUrl":"https://icboms.com/texas-instruments/TPS74634PQWDRBRQ1","factsUrl":"https://icboms.com/api/mcp/products/TPS74634PQWDRBRQ1","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS74634PQWDRBRQ1, Automotive AEC-Q100, 1-A low-IQ high-PSRR LDO regulator, fixed 3.4 V output, 8-VDFN exposed pad package, -40°C to 125°C.","salesMarkdown":"## What this LDO brings to an automotive rail The Texas Instruments TPS74634PQWDRBRQ1 is a 1-A low-dropout linear regulator with a fixed 3.4 V output, designed for automotive power systems that need clean, regulated voltage from a 6 V max input rail. Its headline feature is a PSRR of 53 dB at 1 kHz, rolling off to 30 dB at 1 MHz — enough to suppress switching-ripple from a preceding DC-DC converter feeding a noise-sensitive load like an analog sensor or CAN transceiver. Quiescent current sits at 36 µA, making it viable for always-on modules where battery draw matters. The part is AEC-Q100 qualified and rated over -40°C to 125°C, so it fits under-hood or cabin-ambient environments without derating surprises. ## Protection and control — standard automotive set Enable and Power Good pins give sequencing flexibility for multi-rail power-up schemes. Internal protection covers over-current, over-temperature, and under-voltage lockout (UVLO). No reverse-polarity protection on-chip — if the supply can be reversed, add an external diode. ## Lifecycle and sourcing posture The TPS74634PQWDRBRQ1 is listed as Active and ROHS3 compliant. No end-of-life notice or last-time-buy window is in effect.","metaTitle":"TPS74634PQWDRBRQ1 LDO Regulator, 1 A, 3.4 V Fixed, AEC-Q100","metaDescription":"TI TPS74634PQWDRBRQ1 automotive LDO: 1 A output, 3.4 V fixed, PSRR 53 dB at 1 kHz, 36 µA Iq, -40°C to 125°C, 8-SON.","metaKeywords":null},"attributes":{"series":"Automotive, AEC-Q100","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"PSRR":"53dB ~ 30dB (1kHz ~ 1MHz)","Series":"Automotive, AEC-Q100","Package":"Tape & Reel (TR); Cut Tape (CT)","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"8-VDFN Exposed Pad","lifecycle_stage":"eol_hot","Control Features":"Enable, Power Good","Current - Output":"1A","Protection Features":"Over Current, Over Temperature, Under Voltage Lockout (UVLO)","Number of Regulators":"1","Output Configuration":"Positive","Operating Temperature":"-40°C ~ 125°C","Voltage - Input (Max)":"6V","Voltage Dropout (Max)":"0.265V @ 1A","Supplier Device Package":"8-SON (3x3)","Current - Quiescent (Iq)":"36 µA","Voltage - Output (Min/Fixed)":"3.4V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.33","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.39000","currency":"USD"},{"qty":10,"price":"$1.24500","currency":"USD"},{"qty":25,"price":"$1.18120","currency":"USD"},{"qty":100,"price":"$0.97030","currency":"USD"},{"qty":250,"price":"$0.90704","currency":"USD"},{"qty":500,"price":"$0.80158","currency":"USD"},{"qty":1000,"price":"$0.63282","currency":"USD"},{"qty":3000,"price":"$0.59700","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/b3028502587042f14301006cce7b6200.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is TPS74634PQWDRBRQ1 AEC-Q100 qualified?","answer":"Yes, the part is part of the Automotive, AEC-Q100 series, confirming qualification for automotive-grade applications."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS74634PQWDRBRQ1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS74634PQWDRBRQ1 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}