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单键开关方案

Other Parts Discussed in Thread: BQ24040, TPS65262

目前我们在做一个嵌入式系统

开始考虑的方案是采用自锁开关,用TI的单节锂电池电池充电IC BQ24040 ,out接BAT+ 然后接系统ldo芯片。开关接在LDO使能引脚引脚。  这样系统关机的时候也可以充电。

后期像做成单键开关,不知TI有没有集成的LDO/DCDC的芯片?