SLVSDW2B December 2018 – November 2020 TPS23755
PRODUCTION DATA
The output capacitor is considered as part of the overall stability of the converter, the output voltage ripple, and the load transient response. The output capacitor needs to be selected based on the most stringent of these criteria. The minimum capacitance is typically determined by the output voltage ripple shown in Equation 13.
where Dmax is the calculated operating max duty cycle shown in Equation 14.
For strict load transient requirements, the COUT cap may need to be increased. The TPS23755EVM-894 uses two 22 uF ceramic capacitors for an optimized load transient response.