{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX1678EUA+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX1678EUA","canonicalUrl":"https://icboms.com/analog-devices/MAX1678EUA","factsUrl":"https://icboms.com/api/mcp/products/MAX1678EUA%2B","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices MAX1678EUA+ step-up DC-DC converter, 550mA switch, 0.7V to 5.5V input, adjustable/fixed 2V/3.3V output, 150kHz, synchronous rectifier, 8-uMAX/uSOP, tube.","salesMarkdown":"## 0.7V start-up, 550mA switch — low-voltage boost for battery gear The MAX1678EUA+ is a step-up (boost) DC-DC converter that starts from an input as low as 0.7 V and delivers up to 550 mA on the internal switch — meaning it can generate a regulated 3.3 V rail from a single alkaline cell that has dropped to near end-of-life voltage. Switching at 150 kHz, the part uses a synchronous rectifier — the on-chip FET replaces the usual external Schottky diode, which cuts the forward-drop loss and lifts efficiency in the 2–3.3 V output range typical for portable gear.","metaTitle":"MAX1678EUA+ Step-Up DC-DC, 550mA Switch, 0.7V Input","metaDescription":"MAX1678EUA+ boost converter from Analog Devices. 550mA switch, 0.7V min input, 150kHz, synchronous rectifier. Active, RoHS3. Sourced 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-Up","Topology":"Boost","Output Type":"Adjustable (Fixed)","Mounting Type":"Surface Mount","Package / Case":"8-TSSOP, 8-MSOP (0.118\\\", 3.00mm Width)","lifecycle_stage":"eol_hot","Current - Output":"550mA (Switch)","Number of Outputs":"1","Output Configuration":"Positive","Frequency - Switching":"150kHz","Operating Temperature":"-40°C ~ 85°C (TA)","Synchronous Rectifier":"Yes","Voltage - Input (Max)":"5.5V","Voltage - Input (Min)":"0.7V","Voltage - Output (Max)":"5.5V","Supplier Device Package":"8-uMAX/uSOP","Voltage - Output (Min/Fixed)":"2V (3.3V)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$5.09","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$5.09000","currency":"USD"},{"qty":10,"price":"$4.56700","currency":"USD"},{"qty":25,"price":"$4.31760","currency":"USD"},{"qty":100,"price":"$3.74200","currency":"USD"},{"qty":250,"price":"$3.55016","currency":"USD"},{"qty":500,"price":"$3.18554","currency":"USD"},{"qty":1000,"price":"$2.68660","currency":"USD"},{"qty":2500,"price":"$2.55227","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"How can I order MAX1678EUA+ or check stock?","answer":"The MAX1678EUA+ is an active, RoHS3-compliant boost converter. No stock-holding claim is made — submit a quote request for your target quantity."},{"question":"Is MAX1678EUA+ a direct replacement for MAX1678ESA+?","answer":"The MAX1678EUA+ and MAX1678ESA+ share the same electrical specifications — both are 550 mA switch boost converters with 0.7 V minimum input and synchronous rectification. The difference is the package: the EUA+ suffix indicates the 8-uMAX/uSOP (MSOP-8) package, while the ESA+ suffix is the SOIC-8 package. They are not pin-to-pin compatible without a board layout change."},{"question":"Is MAX1678EUA+ obsolete or end-of-life?","answer":"No."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX1678EUA","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX1678EUA 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}}