我用TPS54528芯片设计出12V转5V@3A和12V转3.3V@3A,在画PCB时,需不需要在TPS54528的PAD上打过孔???
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我用TPS54528芯片设计出12V转5V@3A和12V转3.3V@3A,在画PCB时,需不需要在TPS54528的PAD上打过孔???
HI
打孔的目的是连接中间层或者低层的GND,用于扩张芯片GND的散热面积(等同散热片)
所以我觉得孔径并不要求,多少孔可以参照datasheet。