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手册上BQ24195的 PMID端在Boost时输出电流可以达到2A，输出电压5.1V，但接上1.5A左右的负载时，PMID端输出电压由5.1V降为4.5左右，这是怎么回事？
你的PCB导线压降较大，请测量靠近芯片管脚的地方，看电压是多少？
还有就是芯片温度过高也会使电流能力变弱。
