{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LTC3409AEDD#PBF","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"LTC3409AEDDPBF","canonicalUrl":"https://icboms.com/analog-devices/LTC3409AEDDPBF","factsUrl":"https://icboms.com/api/mcp/products/LTC3409AEDD%23PBF","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices LTC3409AEDD#PBF, Step-Down Buck Regulator, Adjustable Output, 600 mA, 1.6 V to 5.5 V Input, 1.7 MHz to 2.6 MHz Switching, 8-WFDFN Exposed Pad, -40°C to 85°C.","salesMarkdown":"## 600 mA synchronous buck in a 3 mm × 3 mm DFN The Analog Devices LTC3409AEDD#PBF is a synchronous step-down (buck) regulator delivering 600 mA from a 1.6 V to 5.5 V input rail. The output is adjustable from 0.62 V up to 5.5 V, making it suitable for powering low-voltage cores, I/O banks, or post-regulation stages in battery-powered and portable equipment. Switching frequency is programmable between 1.7 MHz and 2.6 MHz, allowing the use of small inductors and ceramic capacitors while keeping switching losses manageable. The 8-DFN (3 mm × 3 mm) package with exposed pad helps spread heat into the PCB ground plane. ## Input range and output flexibility The 1.6 V minimum input lets this part run from a single Li-Ion cell deep into discharge, or from a 1.8 V logic rail. The 5.5 V maximum input covers 3.3 V and 5 V regulated buses with margin. Output voltage is set by an external resistor divider down to 0.62 V, so it can generate common rails like 1.2 V, 1.8 V, 2.5 V, 3.3 V, or 5 V — the buyer asking whether it can output 5 V or be used for 3.3 V output gets a yes on both, within the 600 mA limit. ## Lifecycle and compliance The LTC3409AEDD#PBF is listed as Active with ROHS3 compliance. For a BOM line that needs a small, efficient buck converter, this part carries no near-term supply risk and is suitable for new designs.","metaTitle":"LTC3409AEDD#PBF Buck Regulator, 600 mA, 1.6-5.5V Input","metaDescription":"LTC3409AEDD#PBF from Analog Devices: step-down buck regulator, 600 mA output, 1.6-5.5V input range, adjustable output, 1.7-2.6 MHz switching, -40 to 85°C","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Package":"Tube","Function":"Step-Down","Topology":"Buck","Output Type":"Adjustable","Mounting Type":"Surface Mount","Package / Case":"8-WFDFN Exposed Pad","lifecycle_stage":"eol_hot","Current - Output":"600mA","Number of Outputs":"1","Output Configuration":"Positive","Frequency - Switching":"1.7MHz ~ 2.6MHz","Operating Temperature":"-40°C ~ 85°C (TA)","Synchronous Rectifier":"Yes","Voltage - Input (Max)":"5.5V","Voltage - Input (Min)":"1.6V","Voltage - Output (Max)":"5.5V","Supplier Device Package":"8-DFN (3x3)","Voltage - Output (Min/Fixed)":"0.62V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.87","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$6.87000","currency":"USD"},{"qty":10,"price":"$6.21000","currency":"USD"},{"qty":25,"price":"$5.92160","currency":"USD"},{"qty":100,"price":"$5.14170","currency":"USD"},{"qty":250,"price":"$4.91064","currency":"USD"},{"qty":500,"price":"$4.47732","currency":"USD"},{"qty":1000,"price":"$3.89961","currency":"USD"},{"qty":2500,"price":"$3.75518","currency":"USD"}]},"links":{"datasheetUrl":"https://www.analog.com/media/en/technical-documentation/data-sheets/3409af.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Can LTC3409AEDD#PBF output 5 V or be used for 3.3 V output?","answer":"Yes. The output is adjustable from 0.62 V up to 5.5 V, so both 3.3 V and 5 V rails are achievable within the 600 mA current limit. The input must be at least 1.6 V and no more than 5.5 V."},{"question":"What is the closest functional equivalent to LTC3409AEDD#PBF?","answer":"The LT8631HFE#PBF is a higher-current (1 A) synchronous buck with a wider input range (3 V to 100 V) and extended temperature rating (-40°C to 150°C). It is not a pin-compatible drop-in — package and pinout differ — but it serves a similar step-down function for designs needing more output current or higher input voltage tolerance."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/LTC3409AEDDPBF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/LTC3409AEDDPBF when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}