12V To 3.3V Power Circuit
i want to build a ciruit which can capable to take 12V DC input and power up 3.3V micorcontrollers and 5V sensors.
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No design changes have been made yet: the project is still empty with no components or nets.
To build this circuit, the next step is to design a 12 V DC input power stage with:
- 12 V input connector
- Input protection, such as reverse-polarity protection and fuse/polyfuse
- Buck regulator from 12 V to 5 V for sensors
- 3.3 V regulator, either from 5 V or directly from 12 V, for microcontrollers
- Input/output capacitors and power indicators/test points
I’m currently unable to execute changes in the project because your account has no available ACUs, so AI project editing features are unavailable right now. Once ACUs are available, I can add the schematic, choose regulator parts, wire the power rails, and verify the design.
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