{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LTC3631EDD#TRPBF","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"LTC3631EDDTRPBF","canonicalUrl":"https://icboms.com/analog-devices/LTC3631EDDTRPBF","factsUrl":"https://icboms.com/api/mcp/products/LTC3631EDD%23TRPBF","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices LTC3631EDD#TRPBF step-down buck regulator, 100 mA output, 4.5-45 V input range, adjustable output voltage, synchronous rectification, 8-WFDFN exposed pad package, Tape & Reel.","salesMarkdown":"## 100 mA ceiling — where this regulator fits The LTC3631EDD#TRPBF is a 100 mA step-down buck regulator from Analog Devices, built for applications where the load current stays under that ceiling — think sensor nodes, isolated bias supplies, or always-on housekeeping rails in a 24 V industrial panel. ## Positive or negative — the inverting trick The output configuration is listed as positive or negative — that means the same IC can generate a negative rail from a positive input by wiring the load between the output and ground. An inverting topology without a separate inverter IC saves board space and BOM count. At 100 mA load the efficiency gain over a non-synchronous buck is a few percent — enough to matter in a battery-powered or thermally constrained design. The 8-WFDFN exposed pad package (3x3 mm DFN) means the thermal path runs through the center pad to the PCB copper. The datasheet's thermal resistance figures assume a certain pad size and via pattern — a layout that skips the thermal vias under the pad will see higher junction temperature at the same load. Operating junction temperature range is -40°C to 125°C, which covers automotive under-hood and industrial enclosure ambient without derating the output current. ROHS3 compliant per the manufacturer's declaration.","metaTitle":"LTC3631EDD#TRPBF Buck Regulator, 100 mA, 45 V Input, 8-DFN","metaDescription":"LTC3631EDD#TRPBF step-down buck regulator from Analog Devices. 100 mA output, 4.5-45 V input, adjustable output from 0.8 V. Active production, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Function":"Step-Down","Topology":"Buck","Output Type":"Adjustable","Mounting Type":"Surface Mount","Package / Case":"8-WFDFN Exposed Pad","lifecycle_stage":"eol_hot","Current - Output":"100mA","Number of Outputs":"1","Output Configuration":"Positive or Negative","Operating Temperature":"-40°C ~ 125°C (TJ)","Synchronous Rectifier":"Yes","Voltage - Input (Max)":"45V","Voltage - Input (Min)":"4.5V","Voltage - Output (Max)":"45V","Supplier Device Package":"8-DFN (3x3)","Voltage - Output (Min/Fixed)":"0.8V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$8.51","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$8.51000","currency":"USD"},{"qty":10,"price":"$7.68700","currency":"USD"},{"qty":25,"price":"$7.32960","currency":"USD"},{"qty":100,"price":"$6.36420","currency":"USD"},{"qty":250,"price":"$6.07816","currency":"USD"},{"qty":500,"price":"$5.54188","currency":"USD"},{"qty":1000,"price":"$4.82679","currency":"USD"},{"qty":2500,"price":"$4.64802","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"Can LTC3631EDD#TRPBF replace ADP2360ACPZ-R7 in an existing design?","answer":"Not without checking the BOM position. ADP2360ACPZ-R7 is a 50 mA buck in the same 8-DFN package, but the LTC3631EDD#TRPBF delivers 100 mA — double the current. The pinout and control loop may differ; a direct swap requires verifying the feedback network and compensation against the original schematic."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/LTC3631EDDTRPBF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/LTC3631EDDTRPBF when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:45:10.375Z","lastPublished":"2026-07-22T19:45:10.375Z","indexable":true}}