1A 20V is 1N5817 you have it listed as the 1N5819 which is the 1A 40V

[k0rtalian]

[Switchleg1]

1A 20v is the minimum. I then list multiple different common diodes of various ratings that will work. Schottky or any ultrafast diode will work in this scenario.

[leahcornelius]

Why does it need to be a Schottky exactly? Is it not just there to prevent the ESP leaking current into (trying to power) the buck converter when it is connected to USB but not a car? They have a smaller voltage drop sure but that doesn't really matter when you are feeding into the Vin pin. the LDOs on the esps operate quite happily between 4->7v so if a silicone diode's voltage drop was too large you could just adjust the buck converter's output to compensate, no?

[Switchleg1]

Sure you can use any standard diode like a 1n4004 if you prefer though if given the option I would always opt for the better option.

…

On Tue, May 9, 2023, 10:23 AM Leah Cornelius ***@***.***> wrote: Why does it need to be a Schottky exactly? Is it not just there to prevent the ESP leaking current into (trying to power) the buck converter when it is connected to USB but not a car? They have a smaller voltage drop sure but that doesn't really matter when you are feeding into the Vin pin. the LDOs on the esps operate quite happily between 4->7v so if a silicone diode's voltage drop was too large you could just adjust the buck converter's output to compensate, no? — Reply to this email directly, view it on GitHub <#2 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AVIWVJ2A7MCHCRS6CXTFAUTXFJVP3ANCNFSM6AAAAAAT26ULFY> . You are receiving this because you commented.Message ID: ***@***.***>