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PD器件能不能不用变压器而用DC/DC器件转换成5V电压输出？能的话请推荐满足要求的5V/3A输出的DC/DC器件型号，谢谢。
可以. 一种方式是采用带PWM控制器的PD器件,比如TPS23750, TPS23753A, 可以支持非隔离降压.另外种方式是单独PD器件加DC控制器, 如TPS2375/6+TPS40061.
