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求TI推荐一款电源芯片或者电源方案可以将220V交流电转为100V左右直流电压

Other Parts Discussed in Thread: LM5017

             TI老师!我需要一款芯片可以将日用的220V,50HZ交流电转为100V直流电的芯片,4A电流就OK了,我用TI的webench软件设计,并没有找到这样的芯片。希望TI老师可以推荐一款芯片或者一个方案。我们自己的方案太笨重,要用到很大的线圈。希望换个小巧轻便的方案。