PCB Power Supply Design
I want to make a pcb that takes power 9v 3a from either a usbc female port or a dc 2.5mm power jack and uses buck converters to have 2 5.1 v outputs and a 3.3 v output, the output has to be standard male pins , like the ones to press into a breadboard , so i can use jumper cables
the dimensions of the pcb have to be 80 by 120 mm , the pcb will be assembled by jlcpcb so the parts have to be available from there
the dimensions of the pcb have to be 80 by 120 mm , the pcb will be assembled by jlcpcb so the parts have to be available from there
30 days
0:24
You want a new PCB power board: 9 V / 3 A input, selectable from a USB-C female port or a DC 2.5mm power jack, with two 5.1 V outputs and one 3.3 V output from buck converters, using male pin headers, on an 80 mm x 120 mm board, with parts available from JLCPCB.
Because you’re currently viewing a part project and don’t have edit access here, the best next step is to start a new project with that design brief carried in. The plan should capture the power architecture, add JLCPCB-available parts, set the layout size, then complete schematic and PCB setup; Flux’s planning workflow is intended for multi-step design work like this
If you want, I can also help you refine the prompt before you click it, for example:
- shared vs isolated 5.1 V rails
- whether both inputs can be plugged in at once
- target current for each output rail
Set output currents
Allow both inputs
Use cheap JLC parts
Add protection features
30 days
To get started, talk to Flux or create a New Document.
Welcome 👋
Flux accelerates your PCB design with AI.
Create your account to start using this component and bring your ideas to life.