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TPS51124的电感发出滋滋的响声

Other Parts Discussed in Thread: TPS51124

我们用TPS51124转成3.3V和5V.在负载稍稍加重的情况下,就会发出滋滋的响声。请问是什么原因?如何解决?我们已经尝试更改过频率,电感的感值,以及大小,还更改过输出的电容。均没有得到改善。

0383.+V5SB&+V3.3EC.pdf