Tool/software:
Hi all,
And I am designing a buck converter around the LM5148, it is used in a lab power supply as a pre-regulator and converts the 35V bus to 3 > 33V output.
The problem that I am having is that I designed the buck to work with a frequency of +/- 400KHz but in practice it only goes up to around 100KHz in FPWM mode. The RT resistor does not a influence on the frequency.
Any help would be greatly appreciated.
Kind regads,
Jesper Kraakman
