{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX643AESA+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX643AESA~3","canonicalUrl":"https://icboms.com/analog-devices/MAX643AESA~3","factsUrl":"https://icboms.com/api/mcp/products/MAX643AESA%2B","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices MAX643AESA+, Step-Up Boost Regulator, Adjustable Output 1.31V to 18V, 450mA Switch, 50kHz, 8-SOIC, Surface Mount, -40°C to 85°C.","salesMarkdown":"The MAX643AESA+ is a step-up (boost) switching regulator from Analog Devices, delivering a positive adjustable output from a low-voltage input. It switches at 50 kHz and can deliver up to 450 mA on the internal switch. It is ROHS3 compliant, which simplifies compliance for EU and global builds. No last-time-buy risk to plan for on this line.","metaTitle":"MAX643AESA+ Boost Regulator, 50kHz, 450mA, 8-SOIC","metaDescription":"MAX643AESA+ step-up boost regulator from Analog Devices. 2V-16.5V input, 450mA switch, 50kHz switching, adjustable output up to 18V. Active, ROHS3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Package":"Tube","Function":"Step-Up","Topology":"Boost","Output Type":"Adjustable (Fixed)","Mounting Type":"Surface Mount","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Current - Output":"450mA (Switch)","Number of Outputs":"1","Output Configuration":"Positive","Frequency - Switching":"50kHz","Operating Temperature":"-40°C ~ 85°C (TA)","Synchronous Rectifier":"No","Voltage - Input (Max)":"16.5V","Voltage - Input (Min)":"2V","Voltage - Output (Max)":"18V (Switch)","Supplier Device Package":"8-SOIC","Voltage - Output (Min/Fixed)":"1.31V (15V)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$11.92","priceTiers":[{"qty":1,"price":"$11.92000","currency":"USD"},{"qty":10,"price":"$10.77100","currency":"USD"},{"qty":25,"price":"$10.26960","currency":"USD"},{"qty":100,"price":"$8.91710","currency":"USD"},{"qty":250,"price":"$8.51632","currency":"USD"},{"qty":500,"price":"$7.76488","currency":"USD"},{"qty":1000,"price":"$6.76296","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/97f9939a89b63cdc654d5aaf68355e80.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/MAX643AESA%2B/alternatives.json"},"ai":{"faq":[{"question":"What is the switching frequency of MAX643AESA+?","answer":"The switching frequency is 50 kHz. This is a fixed-frequency architecture, not a pulse-skipping or PFM type."},{"question":"Does MAX643AESA+ have a synchronous rectifier?","answer":"No, it uses an external Schottky diode for the boost rectifier. The internal switch handles the low-side, and the diode provides the output path. This is typical for boost converters in this power range."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX643AESA~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/MAX643AESA~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}}