您好~在我的设计中电源电压已经出来了,但是powergood引脚没有拉高,这个原因可能是什么,多谢
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首先请检查PG的焊接有没有问题,其次请检查一下输出电压是否和设定值符合,一般输出电压达到设定值的~95%(具体见Datasheet)左右,PG会拉高。如果没有达到,即使Vout为高,PG也仍为低。