各位前辈你们好,我现在使用TPS54531作为电源为LINUX核心板供电,电感出现噪声,而且负载越大,原本输出稳定的3.3V会随着负载增大而增大,请问这是什么原因,谢谢
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应该是环路问题,你可以使用WEBENCH软件得到推荐参数,再通过对数据手册工具进行计算,来确定取值的准确。
Hi
注意一下功率回路尽量小,走线宽一点,避免寄生参数。