Considerations on High-Speed Converter PCB Design, Part 3: The E-Pad Low Down Q. What are some important PCB layout rules when using a high-speed converter? A. Part 1 discussed why splitting AGND and DGND is not necessary unless circumstances within the design force that choice. Part 2 discussed the power delivery system (PDS), and how squeezing the power and ground planes together provides additional capacitance. Part 3 discusses the exposed pad (E Pad), another overlooked item that is essential for getting the best performance and most heat out of your PCB design.
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