Hi,
I calculated the R4 by equation(19).
The applied value are following;
Co=47uF*2=94uF, fc=31.62kHz, Vo=5V.
These value are referred to the Typical application schematic.
The calculation result of R4 is 11.22kΩ.
Though, R3 of typical application is 3.74kΩ.
Why is this resistor 3.74kΩ on this schematic?
Is my calculation dis-correct?
Thanks and Regards,
Kuramochi