你好:
我测试LM317, 发现LM317 输出电压和ADJ端的差不是1.25V,而是0.20V附近,输出电压正常,调节也OK,
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你的输入电压,输出电压和电流是多少?
分压电阻阻值是多少?
你目前的情况下,ADJ和GND之间的电压是多少?
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