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TPS65910A输出电压问题。

Other Parts Discussed in Thread: AM3359, TPS65910, AM3354, AM3352

我使用TPS65910AA1给AM3359供电,为什么板子的PMIC VRTC输出电压都是2.2-2.4V,并不是标称的1.8V。是芯片的问题吗?