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TPS63021: 是否可以使用两个TPS63021电路并联来实现4A持续电流输出

Part Number: TPS63021
Other Parts Discussed in Thread: TPS552882, TPS55289

问题:

1、是否可以使用两个TPS63021电路并联来实现输出电流持续在4A?

当输入电压降低,输出电流就会降低,电流是否也不能持续在4A

条件:输入电压:3V-4.2V,(锂离子电池),输出电压3.3V

2、是否有适合输入电压3V-4.2V,输出电压为3.3V,满足输出持续电流为4A的电源芯片或者方案推荐?