{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX1744EUB+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX1744EUB","canonicalUrl":"https://icboms.com/analog-devices/MAX1744EUB","factsUrl":"https://icboms.com/api/mcp/products/MAX1744EUB%2B","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices MAX1744EUB+ step-down buck controller, 4.5-36V input, up to 330kHz switching, transistor driver output, 10-uMAX/uSOP package, tube.","salesMarkdown":"## Buck controller, not a module — what that means for your BOM The MAX1744EUB+ is a step-down (buck) controller from Analog Devices, not a module with integrated inductor and passives. It drives an external N-channel FET via its transistor-driver output, so the BOM includes the controller plus the switching FET, catch diode (non-synchronous rectifier), inductor, and input/output capacitors — the external component count and board area are on you, not the package. The 100% maximum duty cycle lets the high-side switch stay on continuously — useful for low-dropout scenarios where the input voltage barely exceeds the output target — but the external FET's bootstrap capacitor still needs a periodic refresh pulse, so the practical dropout floor is a few hundred millivolts above the output. Switching frequency goes up to 330 kHz — that is on the low side for a modern controller, which means larger magnetics (inductor) but lower switching losses in the FET and diode. For a 24 V to 5 V conversion at a few amps, expect a 10-22 µH inductor and a Schottky diode rated for the peak current. No clock-sync input, so you cannot phase-lock it to an external oscillator; if you need synchronized switching across multiple rails, this is not the part. ## Package and temp grade — layout and environment constraints It will survive a factory floor in winter or an outdoor telecom cabinet in summer, but the junction temperature of the external FET and diode, not the controller, will be the thermal bottleneck at high ambient. The controller itself draws only quiescent current from the Vcc pin, so self-heating is negligible. ## Active production and compliance — no obsolescence risk Analog Devices (which now owns the Maxim portfolio) continues to manufacture this part. ROHS3 compliant means no RoHS exemptions; it ships fully lead-free and meets EU and REACH requirements without a waiver. Because it is a controller rather than a module, the second-source options are broader — any buck controller with a similar input range, switching frequency, and package can be evaluated as a drop-in if the external component values are adjusted. No pin-compatible direct replacement is listed from ADI, but the 10-MSOP footprint is common across many controller families.","metaTitle":"MAX1744EUB+ Analog Devices Buck Controller, 4.5-36V, 330kHz","metaDescription":"MAX1744EUB+ Analog Devices step-down buck controller. Active production, ROHS3. 4.5-36V input, up to 330kHz, 10-uMAX/uSOP. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["DC-DC Power Modules"],"specifications":{"Package":"Tube","Function":"Step-Down","Topology":"Buck","Clock Sync":"No","Output Type":"Transistor Driver","Mounting Type":"Surface Mount","Output Phases":"1","Package / Case":"10-TFSOP, 10-MSOP (0.118\\\", 3.00mm Width)","lifecycle_stage":"eol_hot","Control Features":"Enable","Duty Cycle (Max)":"100%","Number of Outputs":"1","Output Configuration":"Positive","Frequency - Switching":"Up to 330kHz","Operating Temperature":"-40°C ~ 85°C (TA)","Synchronous Rectifier":"No","Supplier Device Package":"10-uMAX/uSOP","Voltage - Supply (Vcc/Vdd)":"4.5V ~ 36V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$7.45","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$7.45000","currency":"USD"},{"qty":10,"price":"$6.73200","currency":"USD"},{"qty":25,"price":"$6.41840","currency":"USD"},{"qty":100,"price":"$5.57320","currency":"USD"},{"qty":250,"price":"$5.32272","currency":"USD"},{"qty":500,"price":"$4.85304","currency":"USD"},{"qty":1000,"price":"$4.22685","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/64f29ec44e475bbda990c4e190004e09.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What package does MAX1744EUB+ come in?","answer":"It is offered in a 10-TFSOP / 10-MSOP package (3.00 mm width), also designated as 10-uMAX/uSOP by Analog Devices. The delivery form is tube, not tape-and-reel."},{"question":"Is MAX1744EUB+ RoHS compliant?","answer":"Yes, it is ROHS3 compliant — fully lead-free with no RoHS exemptions. This covers EU and REACH regulatory requirements for lead-free assembly."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX1744EUB","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX1744EUB 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}}