I have an XH connector with four posts: two positive (3 amps each) and two negative. The connector outputs 12VDC with a 6 amp limit. I am trying to convert this to 5VDC to power components (2.5" HDD/SSD) which will have a combined inrush current of up to 9.6 amps for 4-6 seconds.
I’ve thought of using a buck converter with a capacitor to handle the inrush, but I am not sure what would be more efficient? Would more components be needed that I am not thinking of? Is there an existing IC or component which does this?
12VDC -> capacitor -> buck -> HDD
12VDC -> buck -> capacitor -> HDD
Also I might include an inrush current limiter but I am not sure how that will affect the spinup of the drives.
It would be appreciated if someone could lend some advice or opinions, thanks!