SLUS161F April 1999 – May 2020 UCC2813-0 , UCC2813-1 , UCC2813-2 , UCC2813-3 , UCC2813-4 , UCC2813-5 , UCC3813-0 , UCC3813-1 , UCC3813-2 , UCC3813-3 , UCC3813-4 , UCC3813-5
PRODUCTION DATA.
Refer to the PDF data sheet for device specific package drawings
The output capacitor is selected based on the output voltage ripple requirement. In this design, 0.1% voltage ripple is assumed. Based on the 0.1% ripple requirement, the capacitor value can be selected based on Equation 15.
Considering the tolerance and temperature effect, together the ripple current rating of the capacitors, 3 parallel 680-µF capacitors are selected for the output.
After the basic power stage is designed, the surrounding controller components can be selected.