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TPS54202 12 V to 5 V / 1 A Synchronous Buck Converter Molecule

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by John Lauer

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tps54202-12v-5v-buck-20261018 / steps / 18-current / README.md
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John Lauer Public-safe step pages and screenshots 8c8cf4d 1d ago

Step 18: Current

IPC-2221 on every loaded net, pour and via capacity, the same-layer rule; then the AI's own current density drawing and a walkthrough of the pours it judged

Visits

  • 2026-10-18T21:14:05Z
  • 2026-10-18T22:10:24Z
  • 2026-10-18T22:37:24Z

What the binary checked

analyze-current

  • acknowledgedPeaks: 0 item(s)
  • boardSinkAssumptions: 0 item(s)
  • boardSinkNotes: 0 item(s)
  • expiredAcks: 0 item(s)
  • fieldNote: same-input field screen passed under its stated assumptions
  • fieldReport: ./aiflow-run/fields/fields.json
  • heuristicPass: True
  • pass: True
  • results: 4 item(s)

Screenshots and drawings

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DC current density across GND, VIN, VOUT, and SW copper pours (peak 45.6 A/mm2 on SW, well below 60 A/mm2 limit)

DC current density across GND, VIN, VOUT, and SW copper pours (peak 45.6 A/mm2 on SW, well below 60 A/mm2 limit)

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Clips

AI usage (Google Antigravity)

127 model calls: 470,064 fresh input, 17,070,944 cached input and 86,428 output tokens.