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LM2776: 我在使用LM2776进行+3.3转-3.3时遇到了输出电压偶尔会为-1V的情况

Tonyx.wu
Expert 1650 points
Part Number: LM2776

我在使用LM2776进行+3.3转-3.3时遇到了输出电压偶尔会为-1V的情况,，原理图和PCB布局如下：