{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS746115PQWDRBRQ1","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS746115PQWDRBRQ1","canonicalUrl":"https://icboms.com/texas-instruments/TPS746115PQWDRBRQ1","factsUrl":"https://icboms.com/api/mcp/products/TPS746115PQWDRBRQ1","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS746115PQWDRBRQ1 automotive LDO, 1 A output, 1.15 V fixed, 53 dB ~ 30 dB PSRR (1 kHz ~ 1 MHz), 8-VDFN exposed pad, -40°C to 125°C.","salesMarkdown":"## 1 A automotive LDO with 53 dB PSRR floor The TPS746115PQWDRBRQ1 is a single-output, positive-fixed LDO from Texas Instruments' automotive-grade portfolio, delivering 1 A continuous at a fixed 1.15 V output. Its PSRR curve starts at 53 dB at 1 kHz and rolls off to 30 dB at 1 MHz, which means it attenuates switching-regulator ripple and alternator whine across the frequency band where most automotive power-train noise lives. The 36 µA quiescent current keeps the regulator's own draw low enough for always-on battery-backed systems like body controllers or telematics units that must not drain the standby battery. ## Dropout headroom and thermal budget at full load Maximum dropout is 0.79 V at 1 A output — the input rail must stay at least 0.79 V above 1.15 V across the full load range, or the output falls out of regulation. The Enable and Power Good pins let a system controller sequence the rail and confirm it's ready before enabling downstream loads. ## Protection set eliminates external supervisory ICs Over-current, over-temperature, and under-voltage lockout (UVLO) protection are integrated on-die. The UVLO threshold prevents the output from turning on until the input rail is high enough to keep the pass FET in regulation, which avoids brownout glitches during cold-crank events. Over-temperature shutdown protects the die if the thermal pad is poorly soldered or the ambient exceeds 125°C. Together these features let the LDO serve as a self-contained power rail without a separate supervisor or reset generator.","metaTitle":"TPS746115PQWDRBRQ1 LDO, 1A, 1.15V, AEC-Q100, 53dB PSRR","metaDescription":"Texas Instruments TPS746115PQWDRBRQ1 automotive LDO, 1 A output, 1.15 V fixed, 53 dB PSRR at 1 kHz, -40°C to 125°C, 8-SON. Active production, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":"Automotive, AEC-Q100","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Interface & Transceivers"],"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)":"0.79V @ 1A","Supplier Device Package":"8-SON (3x3)","Current - Quiescent (Iq)":"36 µA","Voltage - Output (Min/Fixed)":"1.15V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.33","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,"alternativesUrl":"https://icboms.com/api/mcp/products/TPS746115PQWDRBRQ1/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for TPS746115PQWDRBRQ1?","answer":"Pricing and stock levels are confirmed at quote time against your BOM quantity. Submit an RFQ through this listing; availability is verified across independent and authorized distribution sources before the quote is issued."},{"question":"What is TPS746115PQWDRBRQ1's listed PSRR?","answer":"The PSRR is specified as 53 dB at 1 kHz, rolling off to 30 dB at 1 MHz. This means the LDO attenuates switching-regulator ripple by 53 dB at lower frequencies and still provides 30 dB rejection at 1 MHz, covering the noise spectrum common in automotive power-train and infotainment supplies."},{"question":"What compliance documentation does Texas Instruments provide for TPS746115PQWDRBRQ1?","answer":"The part is ROHS3 compliant per Texas Instruments' lifecycle data. Standard documentation includes the datasheet, application notes, and AEC-Q100 qualification reports. No additional UL or IEC certification is listed for this device."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS746115PQWDRBRQ1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS746115PQWDRBRQ1 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}}