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有没有比TPS40057只是输入电压范围还要低一点的芯片，输入7V能启动5V5A的输出？？？
这个芯片的输入电压最低4.5V，softstart time可调，请延长软起时间，看看是否可以满载启动
该芯片数据手册给的是8-4V输入电压
可以看下TPS40077，谢谢
Hi
可以同步芯片TPS54620/2等高duty的同步降压芯片。
