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系统中各个芯片的电源标准不同,该如何解决



手头在做一个系统,15V DC输入电源,各个芯片需求电压不同,+5V -5V +12V  +3.3V ,请问各位有没有一类芯片可以提供这几种电压的!求推荐!谢谢!