Do you make an adjustable frequency PWM controller that may be used in a Flyback converter with an external switch?
The ADP1621 boost controller can be used as you describe for an asynchronous design (one switch, one diode) with or without isolation.
The ADP1828 buck controller can be used as a 2 low side switch flyback if you do not need isolation.
Here is an example of the ADP1621 design
Additional reference designs may be listed here:
For this particular design, I will be in a frequency range of 10kHz to 50kHz.
Also, feedback from the output to the controller is not necessarily required.
No we do not have a controller that operates at 10-50Khz.
I am sure you have your reasons to select this frequency range but with recent MOSFET capabilities it may be better to use a higher frequency to maintain the size of the magnetics nice and small.
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