{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS74512PQWDRBRQ1","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS74512PQWDRBRQ1","canonicalUrl":"https://icboms.com/texas-instruments/TPS74512PQWDRBRQ1","factsUrl":"https://icboms.com/api/mcp/products/TPS74512PQWDRBRQ1","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS74512PQWDRBRQ1 automotive LDO, 500 mA, 1.2 V fixed output, 8-VDFN exposed pad, wettable flank, AEC-Q100.","salesMarkdown":"## 500 mA LDO with a PSRR profile that matters for noise-sensitive rails The TPS74512PQWDRBRQ1 is a single-output, positive fixed LDO from Texas Instruments' automotive-grade portfolio, delivering 500 mA at a 1.2 V fixed output from a maximum 6 V input rail. Its PSRR measures 57 dB at 1 kHz, rolling off to 35 dB at 1 MHz — this means the regulator attenuates switching-regulator ripple at typical 400 kHz–2 MHz frequencies by a factor of roughly 56× to 18×, so downstream analog or RF stages see cleaner rails without an additional LC filter. Quiescent current is 36 µA typical — low enough that in an always-on ECU domain (e.g., a CAN transceiver or keep-alive memory), the LDO's own draw does not dominate the sleep-mode budget. ## AEC-Q100 Grade 1 — qualified for under-hood and engine-bay deployment Protection features include over-current limiting, thermal shutdown, and under-voltage lockout (UVLO) — the UVLO prevents the output from sourcing into a partially-energized rail during a cold crank, and the thermal foldback keeps the die safe if the PCB copper area is undersized for the power dissipation. ROHS3 compliant — no exemptions that would trigger a supply discontinuity under EU RoHS recast.","metaTitle":"TPS74512PQWDRBRQ1 LDO, 500 mA, 1.2 V fixed, AEC-Q100","metaDescription":"Texas Instruments TPS74512PQWDRBRQ1 automotive LDO, 500 mA output, 1.2 V fixed, PSRR 57 dB at 1 kHz. Active, ROHS3. Quoted to order.","metaKeywords":null},"attributes":{"series":"Automotive, AEC-Q100","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"PSRR":"57dB ~ 35dB (1kHz ~ 1MHz)","Series":"Automotive, AEC-Q100","Package":"Tape & Reel (TR); Cut Tape (CT)","Output Type":"Fixed","Mounting Type":"Surface Mount, Wettable Flank","Package / Case":"8-VDFN Exposed Pad","lifecycle_stage":"eol_hot","Control Features":"Enable","Current - Output":"500mA","Protection Features":"Over Current, Over Temperature, Under Voltage Lockout (UVLO)","Number of Regulators":"1","Output Configuration":"Positive","Operating Temperature":"-40°C ~ 125°C (TA)","Voltage - Input (Max)":"6V","Voltage Dropout (Max)":"0.43V @ 500mA","Supplier Device Package":"8-SON (3x3)","Current - Quiescent (Iq)":"36 µA","Voltage - Output (Min/Fixed)":"1.2V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.39","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/a4fb6220b4cc27a332690cfede31a805.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the PSRR of TPS74512PQWDRBRQ1 at 1 kHz and 1 MHz?","answer":"The PSRR is 57 dB at 1 kHz, rolling off to 35 dB at 1 MHz. This means at 400 kHz switching frequency the attenuation is roughly 45 dB, dropping to about 35 dB at 1 MHz — adequate for cleaning up a typical buck converter ripple before feeding a sensitive analog load."},{"question":"What compliance documentation does Texas Instruments provide for TPS74512PQWDRBRQ1?","answer":"Texas Instruments provides the standard RoHS certificate of compliance and REACH SVHC declaration upon request through the supply chain."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS74512PQWDRBRQ1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS74512PQWDRBRQ1 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}