新项目在设计中发现，TPS2546设置为最大电流1A，CT1 低电平，CT2高电平，CT3高电平，此时对IPAD充电，IC输入和输出的压降有0.25V，且FAULT引脚输出低电平；而IC最大电流设置为2A时，IC的输入和输出仅有0.12V左右压差，Fault引脚为高电平。按照IC内部阻抗70mΩ计算，电流设置为1A时，此压降不正确
是否此IC在设置低电流时无法正确的对IPAD设备进行充电？
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