Dear TI Experts,
The input capacitor used is 100uF (C3) in the input side of the power supply, instead of 100uF can I use lesser value like 10uF as bulk capacitor, because even if the input capacitor is not sufficient to supply the entire current for the power supply, it can be supplied by the external source ( source power supply / battery) and to reduce the input ripple current we can use additional ceramic capacitors with lesser ESR like 2.2uF two or more numbers accordingly.
As per documents and waveforms every cycle the input capacitor is getting discharged and charged for normal operation of the converter. But in many brick modules or small size converters the input capacitor used are very less, Is it because of the lesser track length or board size, same way can we keep very less values like around 10uF instead of 100uF.
Regards,
Nesh
