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TPS63001输入电流过大

Other Parts Discussed in Thread: TPS63001

我有个锂电池供电的电路,输出为3.3V

产品灌环氧胶,出厂时没问题,使用一段时间后会有输入电流增大的现象。正常情况下输入电流为十几ma,异常有100~200ma。请教下这是芯片损坏吗?