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TPS65910 不工作的问题

Other Parts Discussed in Thread: AM3352

7_KW_CCSK_POWER.pdf项目用到了TPSTPS65910 给AM3352供电的设计,按照官网的EVM的设计,板子回来上板调试,发现TPSTPS65910 不工作,输入端供电5.5V正常,但输出端均没有电压输出,只有VRTC端的电压为0.8V。发现晶振上也没有信号。请TI大神帮忙检查一下原理图,看看那个地方的问题?