The 15V to 5V circuit built by TPS54331, now 5V is needed to power a wifi module, and the dynamic response needs to be improved. Do you have any good ideas?
Arman Posté sur November 18, 2020
1. The capacity of C18 is increased to 330uF.
2. Connect a 2.2nF capacitor in parallel with R7.
Lela Posté sur November 18, 2020
C18 increase to 47UF C14 try 0. 01uf
Kamran Posté sur November 18, 2020
Consider the power consumption of the module and the ripple requirements, and then select the appropriate power IC, leaving a margin for the power supply. The power IC can refer to the typical circuit of the specification.
