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寻芯片: 输入范围3.5--16.8V,当电压高于4.2V时 ,芯片处在buck模式下,低于4.2V,芯片bypass输入。TI有这样的片子吗?

寻芯片: 输入范围3.5--16.8V,当电压高于4.2V时 ,芯片处在buck模式下,低于4.2V,芯片bypass输入。TI有这样的片子吗?