{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX16909RATE/V+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX16909RATE-V","canonicalUrl":"https://icboms.com/analog-devices/MAX16909RATE-V","factsUrl":"https://icboms.com/api/mcp/products/MAX16909RATE%2FV%2B","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices MAX16909RATE/V+, Automotive AEC-Q100, Step-Down Buck, 3A, 3.5-36V Input, Adjustable Output, 16-WQFN Exposed Pad, Tube.","salesMarkdown":"The MAX16909RATE/V+ is a step-down (buck) switching regulator from Analog Devices, qualified to AEC-Q100 Grade 1. Rated for 3 A continuous output current from a 3.5 V to 36 V input range, this part covers the 12 V battery rail through cold-crank dips down to 3.5 V and survives load-dump transients up to 36 V without an external clamp. Switching frequency is fixed at 400 kHz — a compromise between inductor size and efficiency. At this frequency the ripple current in a 10 µH inductor stays manageable, and the switching losses in the internal FET are low enough that the 3 A rating is realizable without a heatsink in the 16-TQFN package, provided the PCB copper area under the exposed pad is adequate. ## Package and board integration — 16-TQFN with exposed pad The exposed pad is the primary thermal path; the datasheet's θJA figure assumes a minimum of four thermal vias under the pad connecting to an internal ground plane. Without those vias the junction temperature rises 20-30°C above the datasheet typical, which eats into the 125°C absolute-maximum margin on a hot day. The 5x5 mm footprint fits a compact automotive ECU layout where board space is tight. The tube packaging (50 units per tube typical) is standard for prototype and low-volume production; for high-volume reels, check the order code suffix at RFQ.","metaTitle":"MAX16909RATE/V+ Analog Devices Buck Converter, 3A, 36V","metaDescription":"Analog Devices MAX16909RATE/V+ automotive buck converter, 3.5-36V input, 3A output, AEC-Q100, active production. Request a quote.","metaKeywords":null},"attributes":{"series":"Automotive, AEC-Q100","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["DC-DC Power Modules"],"specifications":{"Series":"Automotive, AEC-Q100","Package":"Tube","Function":"Step-Down","Topology":"Buck","Output Type":"Adjustable (Fixed)","Mounting Type":"Surface Mount","Package / Case":"16-WQFN Exposed Pad","lifecycle_stage":"eol_hot","Current - Output":"3A","Number of Outputs":"1","Output Configuration":"Positive","Frequency - Switching":"400kHz","Operating Temperature":"-40°C ~ 125°C (TJ)","Synchronous Rectifier":"No","Voltage - Input (Max)":"36V","Voltage - Input (Min)":"3.5V","Voltage - Output (Max)":"10V","Supplier Device Package":"16-TQFN (5x5)","Voltage - Output (Min/Fixed)":"1V (5V)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$7.09","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$7.09000","currency":"USD"},{"qty":10,"price":"$6.40600","currency":"USD"},{"qty":25,"price":"$6.10800","currency":"USD"},{"qty":100,"price":"$5.30350","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/9165d25dd237f7618107d5f97d2a73ab.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How do I get current pricing and availability for MAX16909RATE/V+?","answer":"Submit an RFQ through this listing."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX16909RATE-V","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX16909RATE-V 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}}