TMS320F28335 1.8V电源芯片给两片DSP供电,电源芯片发热严重,电流达290mA;单片1.8V供单片DSP,电流达200mA。采用过LP3893-1.8,LP38501,LP38691-1.8三种芯片。
1.8V电源芯片发热过高是什么原因?如何解决这个问题?单片电源芯片供两片DSP是否可以?
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TMS320F28335 1.8V电源芯片给两片DSP供电,电源芯片发热严重,电流达290mA;单片1.8V供单片DSP,电流达200mA。采用过LP3893-1.8,LP38501,LP38691-1.8三种芯片。
1.8V电源芯片发热过高是什么原因?如何解决这个问题?单片电源芯片供两片DSP是否可以?