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DC-DC TPS40210设计问题

Other Parts Discussed in Thread: TPS40210EVM

我首先是根据数据手册的推荐电路在面包板上搭建好了,发现RC管脚的震荡频率和仿真以及手册上的不一致,实际中只有300K左右,而手册上是600k,还有就是空载时输入电流特别大,而且输出也不符合要求