同样的电路,以前用3.3v供电的时候能够稳定输出2.5v,现在用5v供电,有的时候输出2.54v,有的时候输出2.49v,有的时候输出2.56v,请帮忙解决?
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Hi
参考电压芯片输入输出都需要电容,建议将输出电容稍微加大一点点到0.47uF.
注意GND布局,选择一个干净的模拟GND.