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能否通过TPS62182、TPS62180芯片的PG,EN管脚达到控制电压时序的目的?

Other Parts Discussed in Thread: TPS62180, TPS62182, TMS320C6748

需要为DSP tms320C6748供电,注意到有上电顺序,1.8V电压要在3.3V电压之前供电,因此想先用TPS62180 产生1.8V电压,然后将TPS62180的 PG 管脚接到TPS62182的EN 管脚, 从而实现1.8V稳定后再输出3.3V的目的。不知道这个方案可不可行?谢谢