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LP2992 3.3V漏电流

我们的工作条件这样:

VIN=7.4v,VSS接地,CE通过10k下拉电阻接地,4脚接10nF到地,输入输出都并联10uF陶瓷电容到地。输出居然有0.8v的电压,且漏电流有1mA。

我们测量过CE电压,小于0.1v,符合规格书的关断条件。

SOT23封装的。