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运放电源问题请教!

Other Parts Discussed in Thread: LM5642, LM22670, TPS54060, TPS54040, TPS54160, TPS62150, LM2585

大家好,

        目前本人系统是单电源12V供电。

        请问如何利用单12V电源,生成运放需要的+5V电源和-5V电源。

        12V转5V肯定是没有问题的,关键就是12V转-5V,请问大家有没有什么好的芯片,或者其他好的方案?

 

非常感谢!