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Moteur de recherche de fiches techniques de composants électroniques |
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Moteur de recherche de fiches techniques de composants électroniques |
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SWCS049H Fiches technique(PDF) 129 Page - Texas Instruments |
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SWCS049H Fiches technique(HTML) 129 Page - Texas Instruments |
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129 / 144 page  129 TPS65911 www.ti.com SWCS049S – JUNE 2010 – REVISED AUGUST 2018 Submit Documentation Feedback Product Folder Links: TPS65911 Applications, Implementation, and Layout Copyright © 2010–2018, Texas Instruments Incorporated 7.2.4 Layout Guidelines 7.2.4.1 PCB Layout As with all switching power supplies, the layout is an important step in the design. Proper layout is important for stability, EMI, as well as achieve higher efficiency and load transient response. • Place the input capacitors as close as possible to the input pins on the IC, and on the same side of the board as the IC. • Place the inductor and output capacitor close to the switch node of the IC. • Use a solid ground plane for the GND of the buck converters and controller, and use plenty of vias. • Keep the loop area formed by switch node, inductor, output capacitor, and ground as small as possible. • Route the analog grounds separately from the power grounds, and connect them at the ground plane. • Use short, wide traces for any trace which carries high current like regulator input, output, and ground traces. For more detailed guidelines, refer to the TPS65911 Layout Guidelines. 7.2.5 Layout Example Figure 7-8. VDD1 Layout |
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