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您好，你的问题解决了吗？我也遇到相同的问题，你后来是怎么解决的？方便的话可否留个联系方式，谢谢
Hi
输出负电压后，芯片的PowerPad不再是与GND焊接，而是与负电压所在Pad焊接。
输入电容layout尽量要靠近芯片Vin脚。
