DC12v电源输入,jms578内置3.3v的ldo和buck控制器,因此只需考虑jmb575的3.3v和1.2v电压供电. 12v输入进来后通过tps54335a降压到5v,再使用mp9148双路buck降压输出3.3和1.2给jmb575供电 但是考虑到tps54335a ...
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