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选型:输出电压可编程控制电源芯片,用于调节电源管理芯片的输出电压,求推荐

Other Parts Discussed in Thread: BQ25505

前级电源管理芯片输出范围2.2-5.5V,可调范围在1V左右,如何使该输出电压动态调节?用模拟电源芯片来做?如何选择架构?求推荐