{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX1927REUB+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX1927REUB~3","canonicalUrl":"https://icboms.com/analog-devices/MAX1927REUB~3","factsUrl":"https://icboms.com/api/mcp/products/MAX1927REUB%2B","rawCanonicalId":null},"summary":{"shortDescription":"Maxim Integrated MAX1927REUB+ step-down buck regulator, adjustable output, 800 mA, 2.6-5.5 V input, 10-uMAX/uSOP package, tube.","salesMarkdown":"## 800 mA buck — input range and output floor The MAX1927REUB+: The adjustable output goes down to 0.75 V, which suits low-voltage core rails for MCUs and FPGAs that have migrated below 1 V. The switching frequency spans 800 kHz to 1.2 MHz, letting the designer trade inductor size against switching losses. At 1.2 MHz the inductor can be as small as 2.2 µH, but the transition losses in the internal FETs rise — a 10-µH inductor at 800 kHz keeps efficiency higher at light loads. ## Synchronous rectification and thermal envelope Internal synchronous rectifier means no external Schottky catch diode — the low-side FET replaces it, boosting efficiency especially at low output voltages where a diode's forward drop would eat a large fraction of the output. The trade-off is a slightly higher quiescent current than a diode-based part at very light loads. ## Active lifecycle and compliance posture It is ROHS3 compliant (no exemptions), which clears EU and UKCA markets without a waiver.","metaTitle":"MAX1927REUB+ Step-Down Buck Regulator, 800mA, 10-uMAX","metaDescription":"Active-production step-down buck regulator, 800 mA output, 2.6-5.5V input, adjustable 0.75-5.5V. Industrial temp range, ROHS3. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Package":"Tube","Function":"Step-Down","Topology":"Buck","Output Type":"Adjustable","Mounting Type":"Surface Mount","Package / Case":"10-TFSOP, 10-MSOP (0.118\\\", 3.00mm Width)","lifecycle_stage":"eol_hot","Current - Output":"800mA","Number of Outputs":"1","Output Configuration":"Positive","Frequency - Switching":"800kHz ~ 1.2MHz","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"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$5.09","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$5.09000","currency":"USD"},{"qty":10,"price":"$4.57000","currency":"USD"},{"qty":25,"price":"$4.32000","currency":"USD"},{"qty":100,"price":"$3.74400","currency":"USD"},{"qty":250,"price":"$3.55200","currency":"USD"},{"qty":500,"price":"$3.18720","currency":"USD"},{"qty":1000,"price":"$2.88000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/a049986922db4801e2e7681ac38c26d8.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to MAX1927REUB+?","answer":"The MAX1927 family includes fixed-output versions (e.g., MAX1927EUB+ for 1.8 V, MAX1927EUB+T for tape-and-reel) that share the same 10-uMAX pinout and switching frequency range. The adjustable MAX1927REUB+ is the most flexible variant — a fixed-output sibling saves one feedback resistor but locks the output voltage."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX1927REUB~3","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX1927REUB~3 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}