{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LT3080IST#PBF","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"LT3080IST~4PBF","canonicalUrl":"https://icboms.com/analog-devices/LT3080IST~4PBF","factsUrl":"https://icboms.com/api/mcp/products/LT3080IST%23PBF","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices LT3080IST#PBF adjustable positive LDO, 1.1A output, 36V input max, SOT-223-3 (TO-261AA) surface-mount package, tube.","salesMarkdown":"## Package and board integration — SOT-223-3 footprint The LT3080IST#PBF comes in a 3-pin SOT-223-3 surface-mount package (TO-261AA equivalent). ## Output current and dropout — the real load ceiling Rated for 1.1A continuous output with a maximum dropout of 1.6V at that load. The output is adjustable from 0V to 36V, matching the maximum input voltage. ## PSRR profile — where it cleans and where it doesn't PSRR starts at 75dB at 120Hz and rolls off to 20dB at 1MHz. This is typical for a 1.1A LDO — it rejects 120Hz rectifier ripple well, but above 100kHz the attenuation drops sharply. If the input comes from a switching regulator running at 500kHz or higher, expect only about 20dB of ripple rejection; a second-stage LC filter ahead of the LDO may be needed. ## Protection and quiescent draw Built-in overcurrent, overtemperature, and short-circuit protection cover the common fault modes. Quiescent current is 500 µA typical — moderate for this output class; not a candidate for always-on battery applications where every microamp counts, but fine for industrial rails where the load current dominates the power budget.","metaTitle":"LT3080IST#PBF adjustable LDO, 1.1A, SOT-223-3","metaDescription":"LT3080IST#PBF adjustable positive LDO, 1.1A output, 36V input max, PSRR 75dB~20dB (120Hz~1MHz), SOT-223-3. Active production, RoHS3. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"PSRR":"75db ~ 20dB (120Hz ~ 1MHz)","Package":"Tube","Output Type":"Adjustable","Mounting Type":"Surface Mount","Package / Case":"TO-261-4, TO-261AA","lifecycle_stage":"eol_hot","Current - Output":"1.1A","Protection Features":"Over Current, Over Temperature, Short Circuit","Number of Regulators":"1","Output Configuration":"Positive","Operating Temperature":"-40°C ~ 125°C","Voltage - Input (Max)":"36V","Voltage Dropout (Max)":"1.6V @ 1.1A","Current - Supply (Max)":"30 mA","Voltage - Output (Max)":"36V","Supplier Device Package":"SOT-223-3","Current - Quiescent (Iq)":"500 µA","Voltage - Output (Min/Fixed)":"0V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.33","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$6.33000","currency":"USD"},{"qty":10,"price":"$5.72000","currency":"USD"},{"qty":25,"price":"$5.45440","currency":"USD"},{"qty":100,"price":"$4.73590","currency":"USD"},{"qty":250,"price":"$4.52304","currency":"USD"},{"qty":500,"price":"$4.12392","currency":"USD"},{"qty":1000,"price":"$3.76500","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"What is the PSRR of LT3080IST#PBF?","answer":"PSRR is 75dB at 120Hz, rolling off to 20dB at 1MHz. This means it handles 120Hz rectifier ripple well but provides limited rejection above 100kHz."},{"question":"What package does LT3080IST#PBF come in?","answer":"It is supplied in a 3-pin SOT-223-3 surface-mount package (also designated TO-261AA), shipped in tube format."},{"question":"How does LT3080IST#PBF compare to LT3085EMS8E#TRPBF?","answer":"The LT3085EMS8E#TRPBF is a lower-current variant (0.5A) with a higher PSRR of 90dB at 120Hz. The LT3080IST#PBF delivers 1.1A but with 75dB PSRR at 120Hz. Both are adjustable positive LDOs with similar input voltage range and protection features. The LT3085 comes in an 8-lead MSOP package versus the 3-pin SOT-223-3 of the LT3080."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/LT3080IST~4PBF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/LT3080IST~4PBF 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}}