A project I am designing has to be reliable for many years. I have a switching power supply using a LM2596S-5.0/TR
I am having trouble deciding on the capacitors. I have placed a tantalum 10v 220 uF on the output but on the input I am having trouble.
The datasheet says:
A low ESR aluminum or tantalum bypass capacitor is needed between the input pin and ground pin.
The example application lists a 660uF.
Looking on LCSC, I can only find a couple of SMD capacitors at 50V, 660 uF and they don't mention their ESR. It doesn't help that the datasheets are in Chinese.
I can't seem to find tantalums of this size and voltage either.
Can anyone recommend the types I could use here? Favouring reliability if possible.