{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX20751EKX+T","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX20751EKXT","canonicalUrl":"https://icboms.com/analog-devices/MAX20751EKXT","factsUrl":"https://icboms.com/api/mcp/products/MAX20751EKX%2BT","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices MAX20751EKX+T, 4-Phase Buck Controller, PMBus, PWM Output, 300-800 kHz, 36-QFN (6x6), -40 to +125°C.","salesMarkdown":"## Active production — BOM-fit for new designs The MAX20751EKX+T from Analog Devices is an active-production 4-phase step-down buck controller with a PMBus serial interface. ## 4-phase architecture and switching range Four interleaved output phases spread the inductor current ripple and reduce the per-phase capacitor ripple current — this shrinks the output filter footprint compared to a single-phase controller at the same total current. The switching frequency is programmable from 300 kHz to 800 kHz; lower frequencies cut switching losses in the external FETs, higher frequencies shrink magnetics. The controller outputs a PWM signal and does not integrate synchronous rectifiers — the designer adds external low-side FETs or Schottky diodes. Control features include phase management, a power-good flag, and ramp compensation. ## PMBus telemetry and supply rail The PMBus interface allows readback of output voltage, current, and temperature telemetry, plus margining and fault logging — useful for ATE or server-rack power sequencers that need closed-loop monitoring. Packaged in a 36-VFQFN with exposed pad, 6x6 mm body. The exposed paddle must be soldered to a PCB thermal land with vias to the ground plane — the datasheet's recommended footprint and stencil aperture are the starting point for the layout review. ## Compliance and ordering ROHS3 compliant with no exemptions — no lead in the solder balls or plating.","metaTitle":"MAX20751EKX+T Analog Devices Buck Controller, 4-Phase, PMBus","metaDescription":"Active-production 4-phase buck controller from Analog Devices. PMBus interface, 300-800 kHz switching, -40 to +125°C. 36-QFN package. Quoted to order.","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","Clock Sync":"No","Output Type":"PWM Signal","Mounting Type":"Surface Mount","Output Phases":"4","Package / Case":"36-VFQFN Exposed Pad","lifecycle_stage":"eol_hot","Control Features":"Phase Control, Power Good, Ramp","Number of Outputs":"4","Serial Interfaces":"PMBus","Output Configuration":"Positive","Frequency - Switching":"300kHz ~ 800kHz","Operating Temperature":"-40°C ~ 125°C (TJ)","Synchronous Rectifier":"No","Supplier Device Package":"36-QFN (6x6)","Voltage - Supply (Vcc/Vdd)":"1.71V ~ 3.63V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$8.89","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$8.89000","currency":"USD"},{"qty":10,"price":"$8.03500","currency":"USD"},{"qty":25,"price":"$7.66080","currency":"USD"},{"qty":100,"price":"$6.65190","currency":"USD"},{"qty":250,"price":"$6.35288","currency":"USD"},{"qty":500,"price":"$5.79236","currency":"USD"},{"qty":1000,"price":"$5.04495","currency":"USD"},{"qty":2500,"price":"$4.85810","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"What is the function of the MAX20751EKX+T?","answer":"It is a 4-phase step-down (buck) controller with a PMBus serial interface. It outputs a PWM signal to drive external MOSFETs and does not include integrated synchronous rectifiers."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX20751EKXT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX20751EKXT 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}}