{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX1973EUB+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX1973EUB","canonicalUrl":"https://icboms.com/analog-devices/MAX1973EUB","factsUrl":"https://icboms.com/api/mcp/products/MAX1973EUB%2B","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices MAX1973EUB+ step-down buck regulator, 1A output, 1.4MHz switching frequency, adjustable output, 10-uMAX/uSOP surface-mount package, tube.","salesMarkdown":"The MAX1973EUB+ is a 1A continuous-output synchronous buck converter switching at 1.4 MHz. Input range spans 2.6 V to 5.5 V, covering single-cell Li-Ion (3.6 V nominal) and 5 V USB rails. The output is adjustable down to 0.75 V via an external resistor divider, with fixed presets at 1.8 V and 2.5 V — the 0.75 V floor suits core voltages for low-power MCUs and FPGAs. Internal synchronous rectifier eliminates the external Schottky diode, saving board space and bill-of-materials count. Efficiency peaks above 90 % at moderate loads; the 1.4 MHz switching frequency places the fundamental ripple above the audio band and keeps the output ripple low enough for most analog supplies. ## 10-uMAX package — rework and board-fit considerations Housed in a 10-lead uMAX (also called uSOP), the package is 3.0 mm wide with 0.5 mm pitch — small enough for tight layouts but still hand-reworkable with a hot-air station. The exposed pad underneath is the thermal path; a via array under the pad to the ground plane keeps the junction temperature in check at full 1 A load. The lead frame is tin-plated; a no-clean flux and 350 °C hot air for 20–30 seconds lifts the part cleanly without lifting pads, provided the board has been pre-baked per J-STD-033 if moisture-sensitive.","metaTitle":"MAX1973EUB+ Analog Devices Buck Regulator, 1A, 1.4MHz","metaDescription":"MAX1973EUB+ step-down DC-DC converter from Analog Devices, 1A output, 1.4MHz switching, 10-uMAX package. Active, ROHS3 compliant. Request a quote.","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 (Programmable)","Mounting Type":"Surface Mount","Package / Case":"10-TFSOP, 10-MSOP (0.118\\\", 3.00mm Width)","lifecycle_stage":"eol_hot","Current - Output":"1A","Number of Outputs":"1","Output Configuration":"Positive","Frequency - Switching":"1.4MHz","Operating Temperature":"-40°C ~ 85°C (TA)","Synchronous Rectifier":"Yes","Voltage - Input (Max)":"5.5V","Voltage - Input (Min)":"2.6V","Voltage - Output (Max)":"5.5V","Supplier Device Package":"10-uMAX/uSOP","Voltage - Output (Min/Fixed)":"0.75V (1.8V, 2.5V)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$7.36","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$7.36000","currency":"USD"},{"qty":10,"price":"$6.64500","currency":"USD"},{"qty":25,"price":"$6.33560","currency":"USD"},{"qty":100,"price":"$5.50130","currency":"USD"},{"qty":250,"price":"$5.25400","currency":"USD"},{"qty":500,"price":"$4.79044","currency":"USD"},{"qty":1000,"price":"$4.17231","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/5b71f15d2d0d43eaf55fff35ce73727e.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How can I order the MAX1973EUB+ or check availability?","answer":"The MAX1973EUB+ is an active part from Analog Devices, ROHS3 compliant."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX1973EUB","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX1973EUB 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}}