NMOS的LDO输出的分压电阻为啥我选择1-5k的电阻,输出带载到0.5A会出现正弦波,但是我把电阻改成上百k时候就正常的?这是什么原因引起的,求各路大神解答
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Hi
哪一款芯片? 看起来芯片FB脚损坏。
一般LDO, FB电阻阻值在datasheet中都有推荐范围,建议参照。