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3.6V锂电做升压电路

Other Parts Discussed in Thread: TPS55340

电路是用3.6V锂电为输入,输出是4.2V电压,输出电流是2A;我所用的芯片是TPS55340,电路是TI官网上给出的,但对于其中一些器件的选型比较迷惘。请TI的工程师给我一些帮助,主要正对占空比和电感的选型,还有用这个电路是否能实现此功能