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LM25085电源,输出波形不稳

Other Parts Discussed in Thread: LM25085, TPS63060

  LM25085电源,输入7.4,输出6V,电压输出不稳定,具体看图,附件为原理图,开始带载带不了,后来在ISEN脚加一个10uF对地电容(附件原理图上是没有加的),可以带载了。我是7.4V锂电池供电,现在的波形是空载测试的,然后这个电池还有一路5V的稳压,5V稳压输出受这路电源的影响波形也和这个类似。