{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LP3882ESX-1.5","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LP3882ESX-1.5","canonicalUrl":"https://icboms.com/texas-instruments/LP3882ESX-1.5","factsUrl":"https://icboms.com/api/mcp/products/LP3882ESX-1.5","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LP3882ESX-1.5 LDO regulator, fixed 1.5 V output, 1.5 A, TO-263-6 D²Pak, surface mount, bulk package, active.","salesMarkdown":"## 1.5 A LDO with a dropout that matters under load The LP3882ESX-1.5 is a single-output, fixed 1.5 V positive LDO regulator from Texas Instruments, rated to deliver 1.5 A continuous. Its headline dropout is 0.27 V max at that full load — meaning the input rail can sit at 1.77 V and the output still holds regulation. Quiescent current is 30 µA typical, and the supply current maxes at 8 mA — a reasonable overhead for a 1.5 A part that is not in deep-sleep duty. ## PSRR profile and what it means for a 1.5 V rail Power-supply rejection ratio is listed at 80 dB at 120 Hz, rolling to 65 dB at 1 kHz. That 80 dB at line frequency means the regulator attenuates 120 Hz ripple from a rectified AC source by a factor of 10,000 — a 100 mV pk-pk input ripple becomes 10 µV at the output. By 1 kHz the rejection drops to 65 dB, still attenuating by a factor of ~1800. This profile suits a post-buck rail where the switching noise sits above 100 kHz; below that, the LDO cleans up the fundamental and its low-order harmonics. Protection features include over-current, over-temperature, and under-voltage lockout (UVLO). The UVLO prevents the output from turning on until the input rail is high enough to keep the pass device in regulation — a standard safeguard for a 1.5 V rail that cannot tolerate brown-out glitches. ## DDPAK/TO-263-5 — board integration and thermal management For a 1.5 A LDO dropping 0.5 V, that is 0.75 W to dissipate; the board copper area sets the junction temperature, not the package itself. The part is shipped in bulk tube, not tape-and-reel — a design-in consideration for high-volume pick-and-place lines that expect reel feed. Confirm the feeder setup before committing the BOM position.","metaTitle":"LP3882ESX-1.5 Texas Instruments LDO, 1.5V Fixed, 1.5A","metaDescription":"Texas Instruments LP3882ESX-1.5 LDO regulator, 1.5V fixed output, 1.5A, 0.27V dropout, 80dB PSRR at 120Hz. Active, RoHS non-compliant. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"RoHS non-compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"PSRR":"80dB ~ 65dB (120Hz ~ 1kHz)","Package":"Bulk","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"TO-263-6, D²Pak (5 Leads + Tab), TO-263BA","lifecycle_stage":"eol_hot","Control Features":"Enable","Current - Output":"1.5A","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)":"5.5V","Voltage Dropout (Max)":"0.27V @ 1.5A","Current - Supply (Max)":"8 mA","Supplier Device Package":"DDPAK/TO-263-5","Current - Quiescent (Iq)":"30 µA","Voltage - Output (Min/Fixed)":"1.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.65","stockQuantity":0,"priceTiers":[{"qty":114,"price":"$2.65000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/3e7c371d344a538b6db691084af22398.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the PSRR of LP3882ESX-1.5 and why does it matter?","answer":"PSRR is 80 dB at 120 Hz and 65 dB at 1 kHz. The 80 dB at line frequency means 120 Hz ripple from a rectified AC source is attenuated by a factor of 10,000 — critical for clean analog or precision digital rails fed from a post-rectifier bus."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LP3882ESX-1.5","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LP3882ESX-1.5 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}}