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使用锂电池为MSP430F149供电问题

Other Parts Discussed in Thread: MSP430F149, TPS63051, TPS630252

我想要使用一节锂电池(电压范围在3.0-4.2V)之间,要给MSP430F149芯片供电,因为其芯片工作电压范围为1.8-3.3V,所以我用这种锂电池给其供电,需要加入稳压芯片么?是不是可以直接为430供电呢?因为考虑加入稳压芯片会消耗量量,所以想尽量简化电路,比较纠结的就是电池的最大电压4.2V比430的最大工作电压要高一些,这样是否案却呢?