用的lm2576-adj版本,电感取值470uh,输出电压负电压可调,可是接负载电压掉的厉害,基本接负载就掉了1V,尝试换电感680uh,电感发热严重,换1MH,没有输出电压,换220uh,掉的更多
This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
1. 电感是多大的,不可使用色环电感,需要使用功率电感,比如工字型电感,能耐受的电流要足够大?
2.负载电流是否超过芯片的电流限制,负载电流是多少?
谢谢