{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX640ESA+T","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX640ESAT","canonicalUrl":"https://icboms.com/analog-devices/MAX640ESAT","factsUrl":"https://icboms.com/api/mcp/products/MAX640ESA%2BT","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices MAX640ESA+T step-down buck regulator, 225 mA output, adjustable (1.3V) or fixed 3.3V, 8-SOIC surface-mount package, industrial temperature range.","salesMarkdown":"## Active production — what it means for the BOM The MAX640ESA+T: ROHS3 compliance is confirmed, clearing EU regulatory requirements without an exemption expiry concern. ## Parametric fit for the rail This is a step-down (buck) switching regulator with a single positive output rated for 225 mA continuous. The output can be set to a fixed 3.3V or adjusted down to 1.3V — the adjustable version gives flexibility for non-standard rail voltages without an external LDO cascade. Input voltage range spans 4V to 11.5V, so it works from a 5V rail or a 12V rail with margin. The output voltage maximum matches the input maximum at 11.5V, meaning the part can operate in near-100% duty cycle if the input is close to the output target. No synchronous rectifier is integrated — the external Schottky diode selection matters for efficiency at the 225 mA load point. The 1.3V minimum output is useful for powering low-voltage core logic or I/O banks directly. ## Package and thermal integration The supplier device package is 8-SOIC, matching the package/case entry. This covers most equipment enclosures, control cabinets, and outdoor telecom shelters without requiring a wider-temperature part. Available in Tape & Reel (TR) for automated pick-and-place or Cut Tape (CT) for prototype and low-volume builds. The reel quantity is the standard 8-SOIC carrier format.","metaTitle":"MAX640ESA+T Analog Devices Step-Down Buck, 225mA, 8-SOIC","metaDescription":"Active-production step-down buck regulator from Analog Devices. 225 mA output, adjustable 1.3V or fixed 3.3V. 8-SOIC package. Industrial temp -40 to 85°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Function":"Step-Down","Topology":"Buck","Output Type":"Adjustable (Fixed)","Mounting Type":"Surface Mount","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Current - Output":"225mA","Number of Outputs":"1","Output Configuration":"Positive","Operating Temperature":"-40°C ~ 85°C (TA)","Synchronous Rectifier":"No","Voltage - Input (Max)":"11.5V","Voltage - Input (Min)":"4V","Voltage - Output (Max)":"11.5V","Supplier Device Package":"8-SOIC","Voltage - Output (Min/Fixed)":"1.3V (3.3V)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$9.57","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$9.57000","currency":"USD"},{"qty":10,"price":"$8.64300","currency":"USD"},{"qty":25,"price":"$8.24040","currency":"USD"},{"qty":100,"price":"$7.15520","currency":"USD"},{"qty":250,"price":"$6.83368","currency":"USD"},{"qty":500,"price":"$6.23068","currency":"USD"},{"qty":1000,"price":"$5.42673","currency":"USD"},{"qty":2500,"price":"$5.22574","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/567c182e6cb8d6b2f9c07a9bf0a80671.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX640ESAT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX640ESAT 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}}