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TPS73601目前发现一个问题：
1、在3.3V转2.5V中，单板通电后，输出电压会变化（增大或者减小），测量VREF管脚，发现芯片参考电压不稳定
为什么会出现这样的情况？
我觉得是买到假货了，几千pcs！
！
