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The schematic diagram and PCB are shown below
- TOP LAYOUT
- BOT LAYOUT
- The schematic is based on the circuit recommended by the data manual. Do you know why?
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The schematic diagram and PCB are shown below
Hi
电路借助芯片官网的在线仿真webench仿真获得(或者参考datasheet中推荐电路),主要注意功率电感饱和电流足够,输入电容尽量靠近芯片Vin脚和电感输入端,功率回路尽量小(layout可以尽量参考datasheet 第23页), 上述都可能导致带载能力下降。