the main problem is that, first I get good performance of my buck converter which works at frequency of 200KHz, then I change the frequency from 200KHz to 1MHz; buck converter was not working correct. HIP4080A can work in this frequency.
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I need to a high frequency driver that works correctly. may be TC527 doesn't work at high frequencies. I cannot download its datasheet, so if you had worked with it and you sure that this driver works correctly, I will try it.