{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX8545EUB+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX8545EUB","canonicalUrl":"https://icboms.com/analog-devices/MAX8545EUB","factsUrl":"https://icboms.com/api/mcp/products/MAX8545EUB%2B","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices MAX8545EUB+, step-down (buck) switching controller, 300kHz switching frequency, 2.7V to 28V supply range, synchronous rectifier, 86% max duty cycle, single output, positive configuration, transistor driver output, enable control, -40°C to 85°C operating temperature, 10-TFSOP/10-MSOP package, surface mount.","salesMarkdown":"## Buck controller for 2.7V–28V rails The MAX8545EUB+ from Analog Devices (formerly Maxim Integrated) is a step-down (buck) switching controller designed for single-output, positive-voltage regulation. It integrates a synchronous rectifier driver, which improves efficiency by replacing the freewheeling diode with a low-RDS(on) MOSFET — a common choice in point-of-load and intermediate bus converters where board space is tight. Switching frequency is 300 kHz. Maximum duty cycle is 86%. ## Package and temperature grade Housed in a 10-pin TFSOP/MSOP package (3.00 mm width, 0.118\" body), the MAX8545EUB+ is a surface-mount part suited for dense PCB layouts. The supplier device package is 10-uMAX/uSOP — a common footprint for Maxim's small-outline controllers. Rated for -40°C to 85°C ambient operation, it fits industrial control, outdoor telecom, and automotive cabin environments where extended temperature range is required but full automotive qualification (AEC-Q100) is not specified. ## Lifecycle and sourcing No LTB risk or allocation pressure is reported for this part at this time.","metaTitle":"MAX8545EUB+ Buck Controller, 300kHz, 2.7V-28V, 10-uMAX","metaDescription":"MAX8545EUB+ is an active step-down buck controller from Analog Devices. 300kHz switching, 2.7V to 28V input, synchronous rectifier, 86% duty cycle.","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)":"86%","Number of Outputs":"1","Output Configuration":"Positive","Frequency - Switching":"300kHz","Operating Temperature":"-40°C ~ 85°C (TA)","Synchronous Rectifier":"Yes","Supplier Device Package":"10-uMAX/uSOP","Voltage - Supply (Vcc/Vdd)":"2.7V ~ 28V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.95","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$3.95000","currency":"USD"},{"qty":10,"price":"$3.54600","currency":"USD"},{"qty":25,"price":"$3.35240","currency":"USD"},{"qty":100,"price":"$2.90550","currency":"USD"},{"qty":250,"price":"$2.75648","currency":"USD"},{"qty":500,"price":"$2.47340","currency":"USD"},{"qty":1000,"price":"$2.23500","currency":"USD"}]},"links":{"datasheetUrl":"https://datasheets.maximintegrated.com/en/ds/MAX8545-MAX8548.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the switching frequency of MAX8545EUB+?","answer":"The switching frequency is 300 kHz, which determines the inductor and capacitor values needed for the output filter."},{"question":"Does MAX8545EUB+ have synchronous rectification?","answer":"Yes, it includes a synchronous rectifier driver, which improves efficiency by using a MOSFET instead of a Schottky diode for the low-side switch."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX8545EUB","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX8545EUB 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}}