{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS74511PQWDRBRQ1","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS74511PQWDRBRQ1","canonicalUrl":"https://icboms.com/texas-instruments/TPS74511PQWDRBRQ1","factsUrl":"https://icboms.com/api/mcp/products/TPS74511PQWDRBRQ1","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS74511PQWDRBRQ1 automotive LDO, AEC-Q100, 500 mA output, 1.1 V fixed, 36 µA Iq, PSRR 57 dB at 1 kHz, 8-SON (3x3) wettable-flank package.","salesMarkdown":"## AEC-Q100 qualification and the under-hood thermal profile The TPS74511PQWDRBRQ1 is a Texas Instruments automotive LDO from the AEC-Q100-qualified series, meaning it has passed the stress tests and PPAP requirements for Tier-1 ECU programs. The -40°C to 125°C operating temperature range covers the under-hood ambient band with margin for self-heating at full load. ## Dropout headroom and PSRR — what they mean for the rail design Rated 500 mA continuous output with a maximum dropout voltage of 0.6 V at that load. The input rail must stay at least 0.6 V above the 1.1 V fixed output across the full load range, or the output falls out of regulation. PSRR measures 57 dB at 1 kHz, rolling off to 35 dB at 1 MHz. Upstream switching noise above the crossover frequency — from a pre-regulator or DC-DC converter — passes through with less attenuation, so the LDO alone cannot clean a noisy rail above roughly 100 kHz without additional filtering ahead of it. Quiescent current is 36 µA typical, suited for always-on ECU blocks or sleep-mode circuits where the regulator's own draw must stay below the module's standby budget. ## Wettable-flank QFN and automotive AOI inspection The 8-VDFN exposed-pad package (8-SON, 3x3 mm) uses a wettable-flank design. The side pads wick solder up the package edge during reflow, creating a visible fillet that automated optical inspection (AOI) can verify — a requirement for zero-defect automotive soldering processes. Surface-mount with wettable flank; the exposed thermal pad must be soldered to the PCB copper plane to achieve the rated power dissipation. The Enable control pin allows the output to be gated by a system supervisor or GPIO. ## Protection features reduce external monitoring Integrated over-current, over-temperature, and under-voltage lockout (UVLO) protection means the LDO handles fault conditions without requiring a separate supervisor IC or reset generator for the output rail. Single positive regulator, fixed 1.1 V output — no external resistor divider needed for the feedback node.","metaTitle":"TPS74511PQWDRBRQ1 LDO, 500 mA, AEC-Q100, 8-SON","metaDescription":"Texas Instruments TPS74511PQWDRBRQ1 automotive LDO, 500 mA output, 1.1 V fixed, 36 µA Iq, PSRR 57 dB at 1 kHz. AEC-Q100 qualified. Active production, ROHS3.","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)":"0.6V @ 500mA","Supplier Device Package":"8-SON (3x3)","Current - Quiescent (Iq)":"36 µA","Voltage - Output (Min/Fixed)":"1.1V"}},"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 TPS74511PQWDRBRQ1 at 1 kHz and 1 MHz?","answer":"PSRR is 57 dB at 1 kHz, decreasing to 35 dB at 1 MHz. This means the LDO attenuates low-frequency ripple well but provides less rejection of switching noise above roughly 100 kHz."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS74511PQWDRBRQ1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS74511PQWDRBRQ1 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}}