Google Antigravity

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Revision two.

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Asked for its own design review, Argon found its first board was missing input damping and had optimistic capacitors.

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Here it fixes them, proving the circuit before it builds the board.

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Revision two starts with the circuit.

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Argon read Samsung's measured DC-bias curves: its output capacitors keep only twenty-nine percent at five volts, so it added a fourth and cut the feedforward capacitor to hold the loop under TI's forty kilohertz limit.

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On the input it added a damped forty-seven microfarad electrolytic.

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In simulation, a sixteen volt hot-plug that rang to thirty-one volts now settles at seventeen, and start-up and the load step stay inside their limits.

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Then the board.

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Then the board, live in KiCad.

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Argon placed the parts one at a time through kicad-bridge.

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This time the bootstrap capacitor sits right beside the regulator, and the new forty-seven microfarad electrolytic guards the input.

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aiflow's router closed every connection in five passes, the design-rule gate passed clean, and Argon landed all fifty traces in KiCad, one undo step each.

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The switch-node budget stays at the original twelve millimeters.

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Then the analysis, measured from the board.

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Adom Fields flagged the ground and then the input rail over sixty amps per square millimeter, and Argon widened the copper in KiCad until every power net passed.

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Thermal flagged the inductor again, fifty-three degrees on the switch node.

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This time Argon changed the board, not the budget: fifty-four square millimeters of switch-node copper on both layers, stitched with vias, and the rise fell to thirty-two.

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The silkscreen was audited on the board's real pad and via geometry, and the 3D walkthrough shows the real parts, with the new electrolytic guarding the input.

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Every check on aiflow's finish line passed, with no change to the frozen budgets.

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Revision two: a circuit proven first, from the parts' own data, then a board built live in KiCad and ready for the fab.