您好!我用tps7a4901和3001做的板子,输出正负15v,但发现输出电压不稳定,举个例子,刚开始是15v,过一会儿就变成了15.5v。是不是我用的可调变阻器不够精密的问题?不知还有哪些因素影响芯片输出电压的稳定性?再次感谢!
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