{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX1745AUB+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX1745AUB","canonicalUrl":"https://icboms.com/analog-devices/MAX1745AUB","factsUrl":"https://icboms.com/api/mcp/products/MAX1745AUB%2B","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices MAX1745AUB+ buck controller, step-down topology, 4.5V to 36V input, up to 330kHz switching, 10-uMAX/uSOP surface-mount package, tube.","salesMarkdown":"## What this buck controller does on the board The MAX1745AUB+: It drives an external transistor switch — no synchronous rectifier on-chip — so the bill of materials includes a Schottky catch diode and a low-side MOSFET or diode for the freewheeling path. Switching frequency runs up to 330 kHz, which is a middle ground: fast enough to keep the inductor small, but not so high that layout parasitics dominate the noise budget. ## Package, temperature range, and where it fits Housed in a 10-lead TFSOP/MSOP (3.00 mm wide) package, the MAX1745AUB+ is a surface-mount part for compact boards — the 10-uMAX/uSOP footprint is common in space-constrained power sections. Control features include an Enable pin and 100% duty cycle capability — the latter means the output can ride through brief input dips by keeping the high-side switch on continuously. ## Lifecycle and compliance ROHS3 compliant, which covers the full RoHS substance restriction list including the four phthalates.","metaTitle":"MAX1745AUB+ Buck Controller, 4.5-36V, 10-uMAX","metaDescription":"Active production MAX1745AUB+ step-down buck controller from Analog Devices. 4.5V to 36V input, up to 330kHz switching, -40°C to 125°C. ROHS3 compliant.","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","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 ~ 125°C (TJ)","Synchronous Rectifier":"No","Supplier Device Package":"10-uMAX/uSOP","Voltage - Supply (Vcc/Vdd)":"4.5V ~ 36V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$8.0","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$8.00000","currency":"USD"},{"qty":10,"price":"$7.22300","currency":"USD"},{"qty":25,"price":"$6.88680","currency":"USD"},{"qty":100,"price":"$5.97980","currency":"USD"},{"qty":250,"price":"$5.71104","currency":"USD"},{"qty":500,"price":"$5.20712","currency":"USD"},{"qty":1000,"price":"$4.53523","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/64f29ec44e475bbda990c4e190004e09.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX1745AUB","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX1745AUB 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}}