您好，我想问一下，我用LM25116做了一个24V/12V的，但是没与输出，而且芯片16脚的VCC没有7.4V的电压，4脚电压也有10几V，uvlo端电压只有0.6V左右，这是什么原因造成的？求大神帮忙解决，谢谢！！！
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