所需E币: 3
时间: 2019-12-29 00:04
大小: 45KB
Toprovidelow-current5Vpowerina3.3Vsystem,usearegulated-LDOchiptoreduce3.3Vto2.5V,thenemployacharge-pumpchiptodoublethe2.5Vto5V.Tocounteracttheeffectofhighsourceimpedanceinthechargepump,providefeedbackfromtheoutputtotheLDO.……