LMR14050SDDAR搭建的电路,一共五块,三块带30负载正常,两块上电后输出12V下降到4.3V不能正常工作,寻求帮助
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Hi
如果是同样的电路,layout下有2块板子输出异常偏低,建议你先确认一下功率电感(饱和电流).
电感值:2.2uH 精度:±20% 额定电流:8A 饱和电流(Isat):14A 直流电阻(DCR):18mΩ
HI
只能对比板子了,或者互换零件来确认。