Power supply design question: I want to turn 20V/5A (USB PD) into 1.2V, 1.8V, 3.3V and 5V voltage rails. Having 2 stages is more efficient than direct conversion, so I plan to generate 5V/20A and then derive the other values from that. However I am unsure about the output caps. The 5V output rail should have around 300uF and I am currently designing the 1.2V/20A rail. The calculator tells me I should use a 150uF capacitor at the input. Can I just rely on the output caps or do I have to add that?
latuernich
@latuernich@chaos.social
mastodon
4.5.9
online entity, often touching computers
might also go outside at night to catch photons
might spontaneously materialize at the @eigenbaukombinat
(DE/EN)
#nobot #noindex
0
Followers
0
Following
Joined October 04, 2024
Codeberg:
Pronouns:
she/they
Posts
latuernich
@latuernich@chaos.social
online entity, often touching computers might also go outside at night to catch photons might spontaneously materialize at the @eigenbaukombinat (DE/EN) #nobot #noindex
chaos.social
latuernich
@latuernich@chaos.social
online entity, often touching computers might also go outside at night to catch photons might spontaneously materialize at the @eigenbaukombinat (DE/EN) #nobot #noindex
chaos.social
@latuernich@chaos.social
·
3d ago
0
0
0
latuernich
@latuernich@chaos.social
online entity, often touching computers might also go outside at night to catch photons might spontaneously materialize at the @eigenbaukombinat (DE/EN) #nobot #noindex
chaos.social
latuernich
@latuernich@chaos.social
online entity, often touching computers might also go outside at night to catch photons might spontaneously materialize at the @eigenbaukombinat (DE/EN) #nobot #noindex
chaos.social
@latuernich@chaos.social
·
4d ago
@_veico Und trotzdem gibt es noch Leute, die behaupten, dass Content Creator keinen wichtigen Beitrag zur Gesellschaft leisten :(
0
0
0
latuernich
@latuernich@chaos.social
online entity, often touching computers might also go outside at night to catch photons might spontaneously materialize at the @eigenbaukombinat (DE/EN) #nobot #noindex
chaos.social
latuernich
@latuernich@chaos.social
online entity, often touching computers might also go outside at night to catch photons might spontaneously materialize at the @eigenbaukombinat (DE/EN) #nobot #noindex
chaos.social
@latuernich@chaos.social
·
6d ago
Alright how does a company fuck up this badly (https://vishay.transim.com/power/Products) I just want to calculate some DC/DC converter values for SiC438 ICs...
Also, https://transim.com/ is literally the default Windows Server screen ;-;
Also, https://transim.com/ is literally the default Windows Server screen ;-;
0
0
0
latuernich
@latuernich@chaos.social
online entity, often touching computers might also go outside at night to catch photons might spontaneously materialize at the @eigenbaukombinat (DE/EN) #nobot #noindex
chaos.social
latuernich
@latuernich@chaos.social
online entity, often touching computers might also go outside at night to catch photons might spontaneously materialize at the @eigenbaukombinat (DE/EN) #nobot #noindex
chaos.social
@latuernich@chaos.social
·
Apr 17, 2026
"Ich hoffe, diese E-Mail findet Sie gut!" 🤔
7
0
3
latuernich
@latuernich@chaos.social
online entity, often touching computers might also go outside at night to catch photons might spontaneously materialize at the @eigenbaukombinat (DE/EN) #nobot #noindex
chaos.social
latuernich
@latuernich@chaos.social
online entity, often touching computers might also go outside at night to catch photons might spontaneously materialize at the @eigenbaukombinat (DE/EN) #nobot #noindex
chaos.social
@latuernich@chaos.social
·
Apr 17, 2026
Hi @gsuberland I hope you don't mind the ping. I have read your blog post on 100 nF decoupling caps and am unsure about a situation like this. It's not really the big-little case, the cap actually serves a purpose (decoupling the analog circuitry).
(IC is SiC431 by Vishay https://www.vishay.com/docs/74589/sic431.pdf)
(IC is SiC431 by Vishay https://www.vishay.com/docs/74589/sic431.pdf)
0
0
0
latuernich
@latuernich@chaos.social
online entity, often touching computers might also go outside at night to catch photons might spontaneously materialize at the @eigenbaukombinat (DE/EN) #nobot #noindex
chaos.social
latuernich
@latuernich@chaos.social
online entity, often touching computers might also go outside at night to catch photons might spontaneously materialize at the @eigenbaukombinat (DE/EN) #nobot #noindex
chaos.social
@latuernich@chaos.social
·
Apr 12, 2026
@fafo I hope your first transistor will be made using that process?
1
0
0
latuernich
@latuernich@chaos.social
online entity, often touching computers might also go outside at night to catch photons might spontaneously materialize at the @eigenbaukombinat (DE/EN) #nobot #noindex
chaos.social
latuernich
@latuernich@chaos.social
online entity, often touching computers might also go outside at night to catch photons might spontaneously materialize at the @eigenbaukombinat (DE/EN) #nobot #noindex
chaos.social
@latuernich@chaos.social
·
Apr 12, 2026
help. i think my gf wants to replace me with her flexoptix flexbox. what do i do?
2
0
0
latuernich
@latuernich@chaos.social
online entity, often touching computers might also go outside at night to catch photons might spontaneously materialize at the @eigenbaukombinat (DE/EN) #nobot #noindex
chaos.social
latuernich
@latuernich@chaos.social
online entity, often touching computers might also go outside at night to catch photons might spontaneously materialize at the @eigenbaukombinat (DE/EN) #nobot #noindex
chaos.social
@latuernich@chaos.social
·
Apr 05, 2026
applying ancient knowledge (using scotch tape to protect the sheet from TPU drops the nozzle leaves while probing)
0
0
0
latuernich
@latuernich@chaos.social
online entity, often touching computers might also go outside at night to catch photons might spontaneously materialize at the @eigenbaukombinat (DE/EN) #nobot #noindex
chaos.social
latuernich
@latuernich@chaos.social
online entity, often touching computers might also go outside at night to catch photons might spontaneously materialize at the @eigenbaukombinat (DE/EN) #nobot #noindex
chaos.social
@latuernich@chaos.social
·
Apr 05, 2026
something something kleinanzeigen
2
0
0
latuernich
@latuernich@chaos.social
online entity, often touching computers might also go outside at night to catch photons might spontaneously materialize at the @eigenbaukombinat (DE/EN) #nobot #noindex
chaos.social
latuernich
@latuernich@chaos.social
online entity, often touching computers might also go outside at night to catch photons might spontaneously materialize at the @eigenbaukombinat (DE/EN) #nobot #noindex
chaos.social
@latuernich@chaos.social
·
Mar 04, 2026
@la cringeeeee
1
0
0
latuernich
@latuernich@chaos.social
online entity, often touching computers might also go outside at night to catch photons might spontaneously materialize at the @eigenbaukombinat (DE/EN) #nobot #noindex
chaos.social
latuernich
@latuernich@chaos.social
online entity, often touching computers might also go outside at night to catch photons might spontaneously materialize at the @eigenbaukombinat (DE/EN) #nobot #noindex
chaos.social
@latuernich@chaos.social
·
Mar 04, 2026
@la you could take a look at the big mill tho...
1
2
0