Iin(avg)* Toff =c * △v
is it right?
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What is your question? What part number are you concerned with?
part name :tps82130 ,it is a buck converter,but i use it as a buck/boost topology.
input voltage:3.3
output voltage: -5.2
it is a positive voltage transfer to negtive voltage,
i want to know :
(1) how to calculate the input ripple voltage
(2)how to estimate the transcient load change , is the output capacitor enough
thanks a lot!