{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX641ACSA+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX641ACSA","canonicalUrl":"https://icboms.com/analog-devices/MAX641ACSA","factsUrl":"https://icboms.com/api/mcp/products/MAX641ACSA%2B","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices MAX641ACSA+ boost regulator, step-up topology, adjustable/fixed output, 450mA switch, 45kHz switching frequency, 8-SOIC surface-mount package, tube.","salesMarkdown":"## Step-up regulator with a 450 mA switch The MAX641ACSA+: It operates from a 2 V minimum input up to 16.5 V and can generate output voltages up to 18 V, configurable as either a fixed 5 V or adjustable from 1.31 V. The 45 kHz switching frequency is on the lower side by modern standards, which means the external inductor and capacitor will be physically larger than what you'd use with a 500 kHz part. The trade-off is lower switching losses and potentially better efficiency at light loads, but the board space budget needs to accommodate a bigger coil. ## Package and rework considerations Supplied in a tube, not tape-and-reel — if you're feeding a pick-and-place machine, you'll need to transfer the parts to a feeder-compatible carrier or order the tape-and-reel variant if one exists. For prototype or low-volume builds, the tube is fine. ## Temperature grade and deployment context This limits the MAX641ACSA+ to indoor, temperature-controlled environments — office equipment, bench-top instruments, telecom racks with active cooling. Not suitable for automotive under-hood or outdoor enclosures that see freezing or 85°C+ ambient. The output configuration is positive, single-output, non-synchronous (no internal synchronous rectifier). The external Schottky diode is on you — factor in the diode's forward drop and thermal dissipation when sizing the board layout. ## Sourcing and compliance Sourced through authorized and independent distribution channels. No official pin-compatible second source is listed — the part is single-sourced from Analog Devices.","metaTitle":"MAX641ACSA+ Boost Regulator, 450mA, 8-SOIC, Active","metaDescription":"Analog Devices MAX641ACSA+ step-up boost regulator, 450mA switch, 45kHz, 2-16.5V input, 8-SOIC. Active production, ROHS3 compliant. Request a quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"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":"45kHz","Operating Temperature":"0°C ~ 70°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 (5V)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$7.67","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$7.67000","currency":"USD"},{"qty":10,"price":"$6.92700","currency":"USD"},{"qty":25,"price":"$6.60480","currency":"USD"},{"qty":100,"price":"$5.73500","currency":"USD"},{"qty":250,"price":"$5.47724","currency":"USD"},{"qty":500,"price":"$4.99394","currency":"USD"},{"qty":1000,"price":"$4.34956","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/97f9939a89b63cdc654d5aaf68355e80.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What compliance documentation does Analog Devices provide for the MAX641ACSA+?","answer":"The MAX641ACSA+ is ROHS3 compliant. Analog Devices provides a RoHS certificate and material declaration upon request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX641ACSA","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX641ACSA 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}}