{"id":65268,"date":"2021-04-26T05:26:00","date_gmt":"2021-04-26T05:26:00","guid":{"rendered":"https:\/\/electronicsmaker.com\/?p=65268"},"modified":"2021-04-26T05:26:01","modified_gmt":"2021-04-26T05:26:01","slug":"integrated-1-5a-synchronous-regulators-from-stmicroelectronics-simplify-high-efficiency-power-conversion","status":"publish","type":"post","link":"https:\/\/electronicsmaker.com\/integrated-1-5a-synchronous-regulators-from-stmicroelectronics-simplify-high-efficiency-power-conversion","title":{"rendered":"Integrated 1.5A Synchronous Regulators from STMicroelectronics Simplify High-Efficiency Power Conversion"},"content":{"rendered":"\n

Apr 26, 2021: STMicroelectronics has introduced L6981 synchronous step-down regulators, extending the family of high-efficiency converters that simplify power-supply design by integrating power elements, feedback circuitry, and safety features on-chip.<\/p>\n\n\n\n

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NB_L6981<\/figcaption><\/figure><\/div>\n\n\n\n

Rated to deliver up to 1.5A, with 90% typical efficiency at full load, the L6981 converters are available in two variants optimized for light-load efficiency and noise performance.<\/p>\n\n\n\n

The L6981C for low-current operation uses pulse skipping to maximize efficiency at light loads extending the runtime of battery-powered devices. The L6981N prioritizes low noise by operating permanently in PWM (pulse-width modulation) mode at constant switching frequency and minimizing voltage ripple at light loads.<\/p>\n\n\n\n

Both variants can accept an input voltage from 3.5V to 38V, making them well suited to use in 24V industrial bus-powered applications, 12V and 24V battery-powered equipment, HVAC power supplies, decentralized intelligent nodes, smart sensors, and always-on applications. The output voltage can be adjusted from 0.85V up to the input-voltage value using external resistors.<\/p>\n\n\n\n

Integrated features include high-side and low-side NMOS power transistors, feedback-loop compensation, over-voltage protection, and thermal protection. There is also soft-start circuitry that limits inrush current and ensures a constant output-voltage slope. An Enable pin is provided, which permits power-up\/power-down sequencing and allows a synchronizing clock signal to be applied to the L6981N low-noise converters. The L6981 is included in ST\u2019s 10-year longevity program that ensures long-term component supply.<\/p>\n\n\n\n

The STEVAL-L6981CDR evaluation board for the low-current converter and STEVAL-L6981NDR for the low-noise version are available to help designers accelerate device selection in power-supply development.<\/p>\n\n\n\n

The L6981 is in production now, in the proven, rugged SO8L package, from $1.00 for orders over 1000 pieces.<\/p>\n\n\n\n

Please visit www.st.com\/buckregulators for more information.<\/p>\n","protected":false},"excerpt":{"rendered":"

Apr 26, 2021: STMicroelectronics has introduced L6981 synchronous step-down regulators, extending the family of high-efficiency converters that simplify power-supply design by integrating power elements, feedback circuitry, and safety features on-chip. Rated to deliver up to 1.5A, with 90% typical efficiency at full load, the L6981 converters are available in two variants optimized for light-load efficiency […]<\/p>\n","protected":false},"author":2,"featured_media":65269,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[179],"yoast_head":"\nIntegrated 1.5A Synchronous Regulators from STMicroelectronics Simplify High-Efficiency Power Conversion - Electronics Maker<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/electronicsmaker.com\/integrated-1-5a-synchronous-regulators-from-stmicroelectronics-simplify-high-efficiency-power-conversion\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Integrated 1.5A Synchronous Regulators from STMicroelectronics Simplify High-Efficiency Power Conversion - Electronics Maker\" \/>\n<meta property=\"og:description\" content=\"Apr 26, 2021: STMicroelectronics has introduced L6981 synchronous step-down regulators, extending the family of high-efficiency converters that simplify power-supply design by integrating power elements, feedback circuitry, and safety features on-chip. 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