{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"L6726A","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"L6726A","canonicalUrl":"https://icboms.com/stmicroelectronics/L6726A","factsUrl":"https://icboms.com/api/mcp/products/L6726A","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics L6726A, Buck PWM Controller, Step-Down Topology, 1 Output, 270kHz Switching, 80% Duty Cycle, 4.1V to 13.2V Supply, 8-SOIC, -40°C to 150°C.","salesMarkdown":"## What the 150°C junction rating buys the design The STMicroelectronics L6726A is a single-phase step-down (buck) PWM controller in an 8-SOIC package. It drives an external transistor pair and integrates synchronous rectification. ## Switching at 270 kHz — inductor and capacitor sizing The L6726A switches at a fixed 270 kHz. The 80% maximum duty cycle limits the step-down ratio. ## Control features and design flexibility The L6726A includes Enable, Frequency Control, Phase Control, and Power Good. Enable gives a clean start-up sequence; Power Good provides a fault flag for the system supervisor. Phase Control allows the controller to be synchronized to an external clock or to run in a multi-phase configuration — useful when two L6726A devices power a CPU core and I/O rail and need to be phase-shifted to reduce input ripple. The controller is ROHS3 compliant, so no lead-free process concerns. ## Lifecycle and sourcing posture The ROHS3 compliance is current. For high-volume or long-term programs, dual-sourcing with a pin-compatible second source is worth evaluating.","metaTitle":"L6726A Buck Controller, 270kHz, 8-SOIC, -40°C to 150°C","metaDescription":"STMicroelectronics L6726A step-down buck controller. 270kHz switching, 4.1V-13.2V supply, -40°C to 150°C junction. Active, ROHS3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"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, Frequency Control, Phase Control, Power Good","Duty Cycle (Max)":"80%","Number of Outputs":"1","Output Configuration":"Positive","Frequency - Switching":"270kHz","Operating Temperature":"-40°C ~ 150°C (TJ)","Synchronous Rectifier":"Yes","Supplier Device Package":"8-SOIC","Voltage - Supply (Vcc/Vdd)":"4.1V ~ 13.2V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.88","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.88000","currency":"USD"},{"qty":10,"price":"$1.69200","currency":"USD"},{"qty":25,"price":"$1.59640","currency":"USD"},{"qty":100,"price":"$1.36030","currency":"USD"},{"qty":250,"price":"$1.27724","currency":"USD"},{"qty":500,"price":"$1.11760","currency":"USD"},{"qty":1000,"price":"$0.92600","currency":"USD"},{"qty":2500,"price":"$0.86214","currency":"USD"},{"qty":5000,"price":"$0.83021","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/7837b24dd160b3716e5f15fc8130ab6e.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the L6726A switching frequency?","answer":"The L6726A switches at 270 kHz, fixed frequency. This determines the inductor and capacitor values for the output filter."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/L6726A","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/L6726A 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}}