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LM2596负压问题

Other Parts Discussed in Thread: LM5164

输入电压40V,要求有两路输出一路为0~36V,一路为0~-36V,0~36V打算用LM2596-ADJ输出,0~-36V也打算用LM2596-ADJ输出,(项目在设计阶段可以增加别的电源或者改输入电源)

问题1:正电压的0~36V用LM2596-ADJ怎么输出0V,有没有参考电路?

问题2:负电压的0~-36V用LM2596-ADJ能否实现,压差会不会太大烧毁芯片,(压差=40--36=76V)?

问题3:负电压如果能承受压差,有没有参考电路,如果不行有没有替代芯片?