有三个问题请教:
1. 这颗芯片转出3.3V可以直接给控制器供电吗?比如是STM32F407?
2. 是否需要加LDO?
3. DCDC芯片失效后是直通吗,有什么预防措施?
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HI
可以直接供电,如果需要更小纹波noise, 可以在输出增加LC(磁珠+电容),加LDO也可以。
DC/DC损坏要看具体不良模式,有可能直通,也可能无输出等等。