你好,
TPS6291x datasheet 8.2.2.2.3 Output Capacitor Selection 给出了输出电容值的范围:The effective output capacitance can range from 40 μF (minimum) up to 200 μF (maximum) for a single L-C system design. When using a second L-C filter, the first L-C filter must have output capacitance between 40 μF and 80 μF, the second stage L-C filter (if used) must have at least 20 μF of capacitance, and the total capacitance for both L-C filters must be less than 200 μF.
但是下图所示WEBENCH给出的带第二个LC滤波器的设计给出的Cout是 22uF x 5 = 110uF 大于 datasheet 所要求的小于 80uF,请问哪个是正确的?