{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LT3066EDE-3.3#PBF","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"LT3066EDE-3.3~4PBF","canonicalUrl":"https://icboms.com/analog-devices/LT3066EDE-3.3~4PBF","factsUrl":"https://icboms.com/api/mcp/products/LT3066EDE-3.3%23PBF","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices LT3066EDE-3.3#PBF linear regulator, fixed 3.3V output, 500mA, 45V input max, 71dB PSRR at 120Hz, 12-WFDFN exposed pad package, tube.","salesMarkdown":"## 45V input ceiling and 500mA output — where this LDO fits The LT3066EDE-3.3#PBF is a single-output positive linear regulator from Analog Devices, delivering a fixed 3.3V at up to 500mA from an input rail that can go as high as 45V. That 45V max input is the spec that sets it apart from garden-variety 5.5V or 6V LDOs — it survives 24V industrial rails with margin, handles 12V automotive transients without an external pre-regulator, and still regulates cleanly when the input sags. ## 71dB PSRR and 0.51V dropout — the real-world numbers PSRR is 71dB at 120Hz — that's the rectified line-frequency ripple from a full-wave bridge. In a 24V industrial supply with 100mV of 120Hz ripple on the bulk cap, this LDO knocks it down to about 28µV at the output, which keeps sensitive analog rails clean without a second-stage LC filter. The 0.51V maximum dropout at 500mA means you need at least 3.81V on the input to hold 3.3V regulation at full load — plan the input cap and trace resistance accordingly. Quiescent current is 125µA typical, and the maximum supply current (including the pass-element drive) is 25mA. That 125µA Iq is low enough for always-on rails in battery-backed systems but not ultra-low-power — for sub-10µA standby look elsewhere in the LT306x family. ## Protection features that matter on a crowded board The protection set includes over-current, over-temperature, and reverse polarity — the reverse-polarity clamp is uncommon in linear regulators and saves an external Schottky diode when the input can be mis-wired. Control features (current limit, enable, power good, soft start) give the system designer sequencing and fault reporting without extra discretes. ## Active production — no end-of-life pressure on this BOM line ROHS3 compliant per the manufacturer's declaration.","metaTitle":"LT3066EDE-3.3#PBF LDO Regulator, 45V Input, 500mA, 12-DFN","metaDescription":"Analog Devices LT3066EDE-3.3#PBF linear regulator, 3.3V fixed output, 500mA, 45V max input, 71dB PSRR, -40°C to 125°C. Active production, available to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"PSRR":"71dB (120Hz)","Package":"Tube","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"12-WFDFN Exposed Pad","lifecycle_stage":"eol_hot","Control Features":"Current Limit, Enable, Power Good, Soft Start","Current - Output":"500mA","Protection Features":"Over Current, Over Temperature, Reverse Polarity","Number of Regulators":"1","Output Configuration":"Positive","Operating Temperature":"-40°C ~ 125°C","Voltage - Input (Max)":"45V","Voltage Dropout (Max)":"0.51V @ 500mA","Current - Supply (Max)":"25 mA","Supplier Device Package":"12-DFN (4x3)","Current - Quiescent (Iq)":"125 µA","Voltage - Output (Min/Fixed)":"3.3V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.83","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$6.83000","currency":"USD"},{"qty":10,"price":"$6.13000","currency":"USD"},{"qty":25,"price":"$5.79560","currency":"USD"},{"qty":100,"price":"$5.02280","currency":"USD"},{"qty":250,"price":"$4.76524","currency":"USD"},{"qty":500,"price":"$4.27582","currency":"USD"},{"qty":1000,"price":"$3.64500","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/4b1cb6db2a4899573d06280fe872dd1b.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What compliance documentation does Analog Devices provide for LT3066EDE-3.3#PBF?","answer":"The part is ROHS3 compliant per the manufacturer's declaration. Standard documentation includes the datasheet, RoHS compliance certificate, and material declaration."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/LT3066EDE-3.3~4PBF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/LT3066EDE-3.3~4PBF 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}}