{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX20051AUD/V+T","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX20051AUD-VT","canonicalUrl":"https://icboms.com/analog-devices/MAX20051AUD-VT","factsUrl":"https://icboms.com/api/mcp/products/MAX20051AUD%2FV%2BT","rawCanonicalId":null},"summary":{"shortDescription":"Maxim Integrated MAX20051AUD/V+T, DC DC Regulator LED Driver, Step-Down (Buck) topology, 2A output, 4.5V to 65V input, 400kHz switching, Analog and PWM dimming, 14-TSSOP-EP exposed pad, -40°C to 125°C.","salesMarkdown":"## 2A buck LED driver with wide input range The Maxim Integrated MAX20051AUD/V+T is a DC-DC regulator LED driver built around a step-down (buck) topology, delivering up to 2A per channel from a 4.5V to 65V supply rail. It integrates the switching FET internally, so the external BOM stays compact — just the inductor, sense resistor, and a few passives. The 400kHz fixed switching frequency keeps the magnetics small while staying clear of AM band noise in automotive and industrial lighting panels. ## Analog and PWM dimming — two control paths Dimming is supported through both analog and PWM methods, giving the board designer flexibility. Analog dimming adjusts the LED current linearly via a control voltage, useful for smooth brightness ramps in architectural lighting. PWM dimming switches the output at a duty cycle, preserving color temperature in RGB or tunable-white fixtures. The -40°C to 125°C operating range covers outdoor signage, street lighting, and under-hood automotive applications where the ambient can spike. ## Package and thermal management Housed in a 14-TSSOP package with an exposed pad (14-TSSOP-EP), the part relies on the paddle for heat sinking. The exposed pad must be soldered to a copper plane on the PCB — a via array under the pad pulls heat into the inner layers. Without that thermal path, the 2A output will push the junction above the 125°C limit in continuous operation. The surface-mount footprint is standard for TSSOP-14, so layout reuse across the MAX20051 family is straightforward. ## Lifecycle and compliance The MAX20051AUD/V+T carries an Active product status and is ROHS3 compliant, so there is no last-time-buy pressure for current production. No successor or second-source alternate is recorded in the official cross-reference, so the BOM should be qualified with this exact ordering code. For dual-sourcing or supply resilience, a parametric search against the same 2A, 65V, buck-LED-driver spec is the practical route.","metaTitle":"MAX20051AUD/V+T LED Driver IC, 2A Buck Regulator, 14-TSSOP","metaDescription":"Maxim MAX20051AUD/V+T DC-DC regulator LED driver, 2A output, 4.5V-65V input, 400kHz buck, analog/PWM dimming, -40°C to 125°C. Active, ROHS3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["DC-DC Power Modules"],"specifications":{"Type":"DC DC Regulator","Dimming":"Analog, PWM","Package":"Tape & Reel (TR); Cut Tape (CT)","Topology":"Step-Down (Buck)","Frequency":"400kHz","Applications":"Commercial & Industrial Lighting","Mounting Type":"Surface Mount","Package / Case":"14-TSSOP (0.173\\\", 4.40mm Width) Exposed Pad","lifecycle_stage":"eol_hot","Voltage - Output":"4.875V ~ 5.125V","Number of Outputs":"1","Internal Switch(s)":"Yes","Operating Temperature":"-40°C ~ 125°C","Voltage - Supply (Max)":"65V","Voltage - Supply (Min)":"4.5V","Supplier Device Package":"14-TSSOP-EP","Current - Output / Channel":"2A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.74","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$4.74000","currency":"USD"},{"qty":10,"price":"$4.25500","currency":"USD"},{"qty":25,"price":"$4.02240","currency":"USD"},{"qty":100,"price":"$3.48600","currency":"USD"},{"qty":250,"price":"$3.30724","currency":"USD"},{"qty":500,"price":"$2.96758","currency":"USD"},{"qty":1000,"price":"$2.50278","currency":"USD"},{"qty":2500,"price":"$2.37764","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/9eb006f7c163e5ab84ce191e3564d88b.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to MAX20051AUD/V+T?","answer":"No official pin-compatible second source is recorded in the cross-reference data. The MAX20051 family shares the same 14-TSSOP-EP footprint and pinout across current options, so a sibling within that family (e.g., a different current tier) would be the closest parametric match, but the exact ordering code MAX20051AUD/V+T should be qualified as the primary BOM line item."},{"question":"How to use MAX20051AUD/V+T in a buck LED driver?","answer":"The part is a self-contained buck regulator with an integrated switch. The typical application connects the LED string between the output and ground, with an inductor and sense resistor setting the current. The 400kHz switching frequency allows a small inductor (typically 22 µH to 47 µH range). Analog dimming is applied to the control pin; PWM dimming drives the enable pin with a logic-level signal. The exposed pad must be soldered to a thermal plane for heat dissipation at 2A."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX20051AUD-VT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX20051AUD-VT 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}}