如题,不一定非得用TI的芯片
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Hi
如果要求较高效率的转换可以选择buck架构的TPS62240之类DC/DC的芯片: http://www.ti.com.cn/product/cn/tps62240
效率可以达到90%,内置MOS, 占用layout面积并不大。
如果要求尽量小的layout面积就如上选择LDO, 此时效率稍差,但也有66%.