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多次上电TPS75005单通道输出异常

Other Parts Discussed in Thread: TPS75005

大家好,最近使用TPS75005给28235进行供电时,两通道电压设置为1.9v和3.3v,进行多次重复上电(间隔时间为1s),测试偶尔出现3.3v输出异常(2.2v左右),1.9v电压始终正常,EN引脚电压使用电阻分压(始终为1.8v),不知道应该怎么解决。