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TPS61202发热严重,会烫手,是PCB layout的原因还是电路的原因呢?急求解答

Other Parts Discussed in Thread: TPS61202

TPS61202使用时严重发热,芯片非常烫手,画PCB时疏忽了,没有按照EVM layout设计,是散热不够的原因吗?还是电路设计造成的?电路图中2.2uH电感选用的小封装的3*3mm功率电感