MILPITAS, CA and NORWOOD, MA – April 25, 2017 – Analog Devices, Inc., which recently acquired Linear Technology Corporation, announces the LT8645S, an 8A, 65V input capable synchronous step-down switching regulator. Its unique Silent Switcher® 2 architecture uses two internal input capacitors as well as internal BST and INTVCC capacitors to minimize the area of the hot loops. Combined with very well controlled switching edges and internal construction with an integral ground plane and the use of copper pillars in lieu of bond wires, the LT8645S dramatically reduces EMI/EMC emissions. This improved EMI/EMC performance is not sensitive to board layout, simplifying design and reducing risk even when using two layer PC boards. The LT8645S can easily pass the automotive CISPR25, Class 5 peak EMI limits with a 2MHz switching frequency over its entire load range. Spread spectrum frequency modulation is also available to lower EMI/EMC levels further.
Solutions - 65V, 8A (IOUT), Synchronous Step-Down Silent Switcher 2 Delivers 94% Efficiency at 2MHz & Ultralow EMI/EMC Emissions
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