It is recommended to consider several factors, including current requirements, input and output voltage fluctuations, load characteristics, and required ripple levels。Youlevels. You can estimate the required capacitance using the following simplified formula:
C=I⋅ΔVf⋅VrC=f⋅VrI⋅ΔV
in:
C: C is the required capacitance in farads.
I: I is the load current in amps.
ΔV: ΔV is the desired output voltage ripple in volts.
f: f is the switching frequency in Hertz.
Vr: Vr is the rated voltage of the capacitor in volts.