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稳压芯片选择问题

Other Parts Discussed in Thread: MSP430F149, TPS63051

我用一节锂电池(标称3.7V,范围3.0-4.2V)给MSP430F149(1.8~3.6V)供电,他们之间还需要加入稳压芯片么?需要的话选择什么电路或者芯片呢?设备需要低功耗,所以尽量减少多余的耗电器件为原则。多谢