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TPS54331在负载大于1A时,VIN会受到PH的影响

Other Parts Discussed in Thread: TPS54331

我们在使用TPS54331时,遇到以下情况:

1.在负载为0~1A时,Vin正常,Vout=12V;

2.在负载大于1A时,Vout<12V,Vin的纹波会随负载的增大而变大;

PS:这种情况在批量生产中发现的,TPS54331没有损坏。