设计目标:
使用TPS55340,
输入3.5-4.2V。输出5.0V,2A
原理图:
PCB图:
现象:
空载时,输入4.1V,输出5V
负载10欧姆电阻时,输入电压变为4.0V,输出电压变为3.65V,
这是为何呢,请大神解答。
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