PCB Design for Voltage Regulation

flux

Diagram



  
    
  
  
    
  
















3V Input
5V Boost Converter
12V Boost Converter
5V Current Limiter node_30mA
12V Current Limiter node_30mA
5V Output
12V Output
GND

Updated project description

Updated to: "50 mm x 50 mm power-conversion board with a 3 V input and two separate regulated outputs: 5 V and 12 V. Each output is limited to 30 mA and includes the required boost-converter support components, decoupling, filtering, and output current-limiting stages. The design target includes schematic completion plus PCB/layout feasibility and manufacturability review."

Updated 1 document property

Set System Architecture to "flowchart TD A[3V Input] --> B[5V Boost Converter] A --> C[12V Boost Converter] B --> D[5V Current Limiter 30mA] ..."

Updated 4 document properties

Set Input Voltage to "3V"

Set Output 1 to "5V, 30mA current limited"

Set Output 2 to "12V, 30mA current limited"

Set Board Size to "50mm x 50mm"

Updated 1 layout rule

Set Layout's sizeX to "50mm"

Set Layout's sizeY to "50mm"

Set Layout's boardShape to "rectangle"

Set Layout's cornerRadius to "2mm"

Set Layout's stackup to "Standard 4 Layer"

Set Layout's boardInsetMargin to "0.2mm"

Set Layout's keepOut to "0.2mm"

flux

I chose a 4-layer layout as the safer default for this power board: top and bottom for routing, one solid ground plane, and one internal power layer. That gives cleaner return paths and better noise control around the two switching regulators.

Working...

82d 13:55:10

Read layout.
Started: defining 50 mm board constraints...
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    50 mm x 50 mm power-conversion board with a 3 V input and two separate regulated outputs: 5 V and 12 V. Each output is limited to 30 mA and includes the required boost-converter support components, decoupling, filtering, and output current-limiting stages. The design target includes schematic completion plus PCB/layout feasibility and manufacturability review.

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