Was this helpful?
Was this helpful?
In this Article
  • Created
  • Updated

Article 对于MAXM17552，当输入电压为48V，输出为4V时，工作频率是否可以设为450kHz？

对于BUCK调节器，通常频率越高则解决方案的尺寸越小；频率越低则效率越高。但是选择频率时还要考虑调节器的最小导通时间。例如，MAXM17552的最小导通时间是152ns，根据公式ton(min)=Vo/Vin(max)*fsw，当Vin(max)=55V，fsw=450kHz时， ton(min)=4V/55V*450kHz=162ns，所以450kHz是可以的。

Before You Switch

Switching languages will make ADI Explorer unavailable. Resume your session by switching back to English and reopening ADI Explorer.