{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LT1965EDD-3.3#TRPBF","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"LT1965EDD-3.3~4TRPBF","canonicalUrl":"https://icboms.com/analog-devices/LT1965EDD-3.3~4TRPBF","factsUrl":"https://icboms.com/api/mcp/products/LT1965EDD-3.3%23TRPBF","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices (Linear Technology) LT1965 series LDO voltage regulator, LT1965EDD-3.3#TRPBF, fixed 3.3V output, 1.1A, 75dB PSRR, 8-WFDFN exposed pad package, tape and reel.","salesMarkdown":"## 3.3V rail at 1.1A — the dropout and PSRR story The LT1965EDD-3.3#TRPBF is a fixed 3.3V output LDO regulator rated for 1.1A continuous output current. PSRR is 75dB at 120Hz, which is the rectified line-frequency ripple that leaks through a bulk capacitor. For an analog supply rail powering a 16-bit ADC or a precision op-amp chain, that rejection keeps 120Hz ripple off the sensitive circuitry without needing a post-filter LC stage. ## Package and rework — the 8-DFN exposed pad The 8-WFDFN package (3x3mm body, 8-DFN supplier device package) has an exposed pad on the bottom that serves as the thermal path and the ground connection. Without that via pattern, the 1.1A load at high ambient will hit the thermal limit before the current limit. Rework note: the exposed pad makes hand rework trickier than a standard SOIC. Preheating the board to 100-120°C before hitting the package with hot air reduces the risk of lifting the pad. The pin 1 indicator is a small dot on the top surface — confirm orientation before placing, because the DFN has no chamfered edge on the short side. ## Industrial temperature range and protection The protection set — over-current, over-temperature, and reverse polarity — covers the common field faults: a shorted load, a lost heatsink, or a backwards battery connection on the input.","metaTitle":"LT1965EDD-3.3#TRPBF LDO Regulator, 3.3V 1.1A, 75dB PSRR","metaDescription":"Active LT1965EDD-3.3#TRPBF LDO: 3.3V fixed output, 1.1A, 75dB PSRR at 120Hz, 0.49V dropout. 8-DFN package, -40 to 125°C. Sourced 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 (120Hz)","Package":"Tape & Reel (TR); Cut Tape (CT)","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"8-WFDFN Exposed Pad","lifecycle_stage":"eol_hot","Control Features":"Enable","Current - Output":"1.1A","Protection Features":"Over Current, Over Temperature, Reverse Polarity","Number of Regulators":"1","Output Configuration":"Positive","Operating Temperature":"-40°C ~ 125°C","Voltage - Input (Max)":"20V","Voltage Dropout (Max)":"0.49V @ 1.1A","Current - Supply (Max)":"40 mA","Supplier Device Package":"8-DFN (3x3)","Current - Quiescent (Iq)":"1.1 mA","Voltage - Output (Min/Fixed)":"3.3V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.4","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$6.40000","currency":"USD"},{"qty":10,"price":"$5.75200","currency":"USD"},{"qty":25,"price":"$5.43760","currency":"USD"},{"qty":100,"price":"$4.71280","currency":"USD"},{"qty":250,"price":"$4.47108","currency":"USD"},{"qty":500,"price":"$4.01188","currency":"USD"},{"qty":1000,"price":"$3.42000","currency":"USD"},{"qty":2500,"price":"$3.42000","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"What is LT1965EDD-3.3#TRPBF's PSRR rating?","answer":"75dB at 120Hz. This is the power-supply rejection ratio at the fundamental ripple frequency from a full-wave rectifier — the figure that determines how much 120Hz noise couples onto the output rail."},{"question":"Is LT1965EDD-3.3#TRPBF RoHS compliant?","answer":"Yes — ROHS3 compliant per the manufacturer's lifecycle record."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/LT1965EDD-3.3~4TRPBF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/LT1965EDD-3.3~4TRPBF 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}}