现有电压48V，需要用到24V和5V电压，搭了两个BUCK电路。一个用的LM5085芯片，将48V转成24V；另一个用的LM3485芯片，将24V转成5V。两个电路单独工作都没什么问题，但是两个电路连接起来后，出现24V的输出处只有17V左右，5V输出处正常，请问有人遇到过此类问题吗？有什么解决办法呢？
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