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TPS62872-Q1: 芯片应用问题

Part Number: TPS62872-Q1

TPS6287x-Q1,I2C写入到芯片的数据是RAM,还是ROM,关机后再次上电。预设置电压的还能够正常输出么?

我的应用是通过I2C设置输出为1.8V,给4路射频供电,每路2A电流.