Feedback loop equation for constant_off_time buckboost?

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Flyback

Well-Known Member
Hello,
Please could you advise what is the Right Half Plane Zero frequency for the attached BuckBoost LED driver?
Its a constant _off_time controlled one.

Vin = 10V
Fsw = 119KHz
Dynamic resistance of LEDs at 500mA = 0.6 Ohms.
L = 47uH
Cout = 10uH
Duty cycle = 0.78
v(LEDs) = 34.65V
 

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