现在用的是ME7660 问题是5v输入 带载能力差,输出达不到-5V 顶多-4.25V 负载电流大概在3mA以内.
请大家帮忙!谢
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你好,
你可以使用隔离模块DCP010505/DCR010505,将输出端Vout链接次级地,输出0V端相对于地为-5V。
你也可以使用其它隔离结构如fly-buck(TPS55010) flyback.
或者你可以考虑用buck芯片做buck-boost.