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TPS62142很容易烧坏

Other Parts Discussed in Thread: TPS62142

TPS62142来做12V转3.3V,遇到两个问题:

1、负载电流达到600mAy以上时,输出电压降到3.18V左右

2、负载2点几瓦时,使用一段时间,容易烧坏

电路原理图如下(备注:3.3nF实际使用的是3nF):