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Automotive power supply with buck-boost and input protection

After an AI-assisted attempt did not work out, the client asked me to redo this 4-layer power supply for an automotive control panel. I refined the power stage and completed the KiCad layout.

3D render of a 4-layer automotive power supply PCB with input connector, buck-boost stage and output capacitors

The problem

The client needed a power supply board for an automotive control panel with a variable battery supply. They had tried to design it with AI tools, but it did not give usable results. They hired me to redo it and finish it properly.

What I did

  • Refined the power-stage schematics and the component selection, built around the TI LM5176-Q1 buck-boost controller.
  • Kept the required functions: selectable output voltage, reverse-polarity protection, transient suppression, and enable and status signals for the control panel.
  • Completed a compact 4-layer layout in KiCad, with compact switching loops, Kelvin current-sense connections and dedicated high-current routing.

The result

A compact, complete power supply design ready for the control panel, replacing the attempt that did not work. Client and application details are kept private under NDA.

Need something similar?

Startup, scale-up, product company or entrepreneur? Tell me what you need. I reply within 1 business day, and you get a fixed quote once I see your files.

Start a Projectmiguel@copperpathpcb.com