{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS71519DCKR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS71519DCKR","canonicalUrl":"https://icboms.com/texas-instruments/TPS71519DCKR","factsUrl":"https://icboms.com/api/mcp/products/TPS71519DCKR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS71519DCKR, linear LDO regulator, fixed 1.9V output, 50mA, SC-70-5 (SOT-353), 60dB PSRR at 100kHz, 4.2µA quiescent current, -40°C to 125°C.","salesMarkdown":"## 50mA LDO with 60dB PSRR at 100kHz — SC-70-5 footprint The Texas Instruments TPS71519DCKR is a fixed 1.9V output, 50mA LDO in a 5-pin SC-70-5 (SOT-353) package. Its 60dB PSRR at 100kHz means it attenuates switching noise from a downstream DC-DC converter by a factor of 1000 at that frequency — a meaningful spec for powering a precision voltage reference or an ADC analog supply where the upstream rail carries ripple. Quiescent current is 4.2 µA typical. For a battery-powered sensor that sleeps 99% of the time, the regulator's own draw sets the floor on system idle current — the TPS71519DCKR adds less than 5 µA to the sleep budget. ## Dropout headroom and temperature grade Maximum dropout voltage is 0.75V at the full 50mA load. The part holds its output accuracy and PSRR across this range, though the dropout voltage increases at temperature per the datasheet's typical curve. The part is suitable for new designs and carries no last-time-buy pressure.","metaTitle":"Texas Instruments TPS71519DCKR LDO, 1.9V Fixed, 50mA","metaDescription":"Texas Instruments TPS71519DCKR — 50mA LDO, fixed 1.9V output, 60dB PSRR at 100kHz, 4.2µA quiescent current, SC-70-5 package. Active lifecycle, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"PSRR":"60dB (100kHz)","Package":"Tape & Reel (TR); Cut Tape (CT)","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"5-TSSOP, SC-70-5, SOT-353","lifecycle_stage":"eol_hot","Current - Output":"50mA","Protection Features":"Over Current","Number of Regulators":"1","Output Configuration":"Positive","Operating Temperature":"-40°C ~ 125°C","Voltage - Input (Max)":"24V","Voltage Dropout (Max)":"0.75V @ 50mA","Supplier Device Package":"SC-70-5","Current - Quiescent (Iq)":"4.2 µA","Voltage - Output (Min/Fixed)":"1.9V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.89","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.89000","currency":"USD"},{"qty":10,"price":"$0.78400","currency":"USD"},{"qty":25,"price":"$0.73600","currency":"USD"},{"qty":100,"price":"$0.60070","currency":"USD"},{"qty":250,"price":"$0.55800","currency":"USD"},{"qty":500,"price":"$0.47488","currency":"USD"},{"qty":1000,"price":"$0.37990","currency":"USD"},{"qty":3000,"price":"$0.34429","currency":"USD"},{"qty":6000,"price":"$0.33600","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/c6487e28dedf5427da1660326e9574b1.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the PSRR of TPS71519DCKR at 100 kHz?","answer":"The TPS71519DCKR provides 60 dB of power supply rejection ratio at 100 kHz. This is the key spec for filtering switching noise from a DC-DC converter feeding a precision analog rail."},{"question":"What package does TPS71519DCKR come in?","answer":"The TPS71519DCKR is supplied in a 5-pin SC-70-5 (also known as SOT-353) package."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS71519DCKR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS71519DCKR 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}}