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按照LP2992IM5-3.3 数据手册推荐设计电路，出现3.3V输出会产生震荡，频率为几Hz； 输出并一个1k欧姆的电阻，震荡消失，请问是何原因？LDO有环路稳定和最小负载的要求吗？
输出是否有接电容？传完整相关电路和PCB。
