使用TPS7A3001进行负电压转换,输入电压为-12V,输出电压为-10V和-2V,其中-2V主要为2个全差分运放THS4531A供电。工作过程中TPS7A3001的输出经常会发生异常,由设定的-2V变为+1V左右,断电重新焊接引脚后,恢复正常,但一段时间后还是会发生异常,求帮忙分析原因。谢谢!
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