SNVAA44 july 2023 LM5155 , LM5155-Q1 , LM51551 , LM51551-Q1 , LM5156 , LM5156-Q1 , LM51561 , LM51561-Q1 , LM5157 , LM5157-Q1 , LM51571-Q1 , LM5158 , LM5158-Q1 , LM51581
(The LM5155 is a boost controller but for completeness this is shown here as well)
Buck will start at 0 V:
The slow-start time needs to be longer (slower) then the time constant of the output LC filter. This time constraint can be expressed as described in Equation 4