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请问有没有单输入多路输出电源芯片?

Other Parts Discussed in Thread: LM5022

如题,输入电压为3.7V至9V,我想得到的电压有3.3V,正负5V,正负12V,请问有没有多输出的DCDC控制芯片呢?(当然不是同时输出这五个电压,如果能那最好不过了)。

我想过用变压器来做,但是也没找到这样的变压器按控制芯片。实属无奈,上贴求教!!不胜感激!!!