{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX1966ESA+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX1966ESA","canonicalUrl":"https://icboms.com/analog-devices/MAX1966ESA","factsUrl":"https://icboms.com/api/mcp/products/MAX1966ESA%2B","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices MAX1966ESA+, Step-Down Buck Controller, 1 Output, Transistor Driver, 102kHz Switching, 2.7V–5.5V Supply, 8-SOIC (0.154\", 3.90mm Width), -40°C to 85°C, Tube.","salesMarkdown":"## 102 kHz switching — what it means for the board The switching frequency is fixed at 102 kHz, with no clock sync input. ## Synchronous rectifier — external MOSFETs required This is a controller, not a converter; there are no integrated power switches. The Transistor Driver output type means you supply two N-channel MOSFETs — one for the high side, one for the low side — plus the inductor and output capacitor. The synchronous rectifier topology demands a bootstrap capacitor for the high-side gate drive. The 95% maximum duty cycle leaves headroom for dropout operation near the input rail. The Enable control feature lets you sequence the rail on and off from a logic signal. ## Package and environment Housed in an 8-pin SOIC with a 3.90 mm body width, this is a standard surface-mount footprint. The -40°C to 85°C operating range covers most industrial and telecom enclosures. ## Sourcing and lifecycle The MAX1966ESA+ carries an Active product status and is ROHS3 compliant. No pin-compatible second source or official replacement is listed in the available documentation.","metaTitle":"MAX1966ESA+ Buck Controller, 102kHz, 8-SOIC","metaDescription":"MAX1966ESA+ step-down buck controller from Analog Devices. 102kHz switching, 2.7V–5.5V supply, synchronous rectifier, -40°C to 85°C. Active, ROHS3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["DC-DC Power Modules"],"specifications":{"Package":"Tube","Function":"Step-Down","Topology":"Buck","Clock Sync":"No","Output Type":"Transistor Driver","Mounting Type":"Surface Mount","Output Phases":"1","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Control Features":"Enable","Duty Cycle (Max)":"95%","Number of Outputs":"1","Output Configuration":"Positive","Frequency - Switching":"102kHz","Operating Temperature":"-40°C ~ 85°C (TA)","Synchronous Rectifier":"Yes","Supplier Device Package":"8-SOIC","Voltage - Supply (Vcc/Vdd)":"2.7V ~ 5.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.58","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$4.58000","currency":"USD"},{"qty":10,"price":"$4.11000","currency":"USD"},{"qty":25,"price":"$3.88600","currency":"USD"},{"qty":100,"price":"$3.36780","currency":"USD"},{"qty":250,"price":"$3.19512","currency":"USD"},{"qty":500,"price":"$2.86698","currency":"USD"},{"qty":1000,"price":"$2.41794","currency":"USD"},{"qty":2500,"price":"$2.29704","currency":"USD"}]},"links":{"datasheetUrl":"https://datasheets.maximintegrated.com/en/ds/MAX1966-MAX1967.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Does the MAX1966ESA+ require external MOSFETs?","answer":"Yes. This is a controller, not a converter — it drives two external N-channel MOSFETs (high-side and low-side) in a synchronous rectifier topology. No internal power switches."},{"question":"What is the closest pin-compatible alternative to the MAX1966ESA+?","answer":"No official pin-compatible second source or replacement is listed in the available documentation."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX1966ESA","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX1966ESA when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}