Hi,
I want to design a variable power supply to power a drv8432 and opted to use the lm2678.The maximum input voltage to the converter is 25V and the Imax is 5A. The output should be able to go up to about 20v and go down as low as possible (preferably 0V).
1. According to what I gleaned from the datasheet of the lm2678 I need an inductor of 10uH. Is this correct? I can put a higher value if needed. What are the advantages / disadvantages of that ?
2. The drv 8432 recommends a 1000uF input cap. Is this going to badly effect the stability of the circuit?
regards