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

@@ -0,0 +1,127 @@+WEBVTT++00:00:00.150 --> 00:00:04.441+This is Adom Hydrogen, with Google Antigravity running Gemini 4 Argon.++00:00:04.491 --> 00:00:07.204+Hydrogen's widget up top shows Antigravity's quota:++00:00:07.254 --> 00:00:10.756+fourteen percent of the week used before we start.++00:00:10.806 --> 00:00:14.308+The widgets menu is where you turn it on.++00:00:14.708 --> 00:00:15.589+One sentence:++00:00:15.639 --> 00:00:23.970+make me a twelve volt to five volt buck converter with the TPS54202, use adom-aiflow, and use KiCad.++00:00:24.370 --> 00:00:31.340+Argon follows adom-aiflow's twenty-five steps, and the AI Flow timeline in Hydrogen tracks every one.++00:00:31.390 --> 00:00:33.680+First, the fab's design rules.++00:00:34.080 --> 00:00:38.374+Then the circuit math, every value from the datasheet's own equations.++00:00:38.774 --> 00:00:39.111+Sourcing:++00:00:39.161 --> 00:00:42.204+every part in stock, with a part number.++00:00:42.604 --> 00:00:49.274+Every part has its own page on the Adom wiki, with its 3D model, right here in a Hydrogen tab.++00:00:54.604 --> 00:00:57.479+And the same parts arrive in KiCad:++00:00:57.529 --> 00:01:01.658+symbol, footprint and 3D model, from the board's own library.++00:01:05.604 --> 00:01:08.892+Argon draws the schematic in KiCad:++00:01:08.942 --> 00:01:11.674+thirty-eight symbols, zero ERC errors.++00:01:13.604 --> 00:01:17.197+Before any copper, it simulates the circuit in SPICE:++00:01:17.247 --> 00:01:19.626+start-up, ripple and a load step.++00:01:20.026 --> 00:01:21.595+Placement, part by part.++00:01:21.645 --> 00:01:26.048+Every move is a KiCad bridge call; nobody touches the mouse.++00:01:29.026 --> 00:01:34.616+Routing then finds the switching trace too long, and aiflow sends Argon back to placement.++00:01:34.666 --> 00:01:35.744+Loop back one.++00:01:36.144 --> 00:01:37.966+Two parts move in closer.++00:01:41.144 --> 00:01:50.214+Then routing again, trace by trace and net by net, every track a KiCad bridge call, to zero DRC errors and zero unconnected.++00:01:53.144 --> 00:01:56.622+The current analysis finds a neck in the switching copper.++00:01:57.022 --> 00:02:00.611+So aiflow sends Argon back to the pours to widen it.++00:02:00.661 --> 00:02:01.604+Loop back two.++00:02:02.004 --> 00:02:09.768+The thermal check then finds the inductor's copper running hotter than its budget, and sends Argon back to widen the output pour.++00:02:09.818 --> 00:02:10.834+Loop back four.++00:02:11.234 --> 00:02:14.691+Adom Fields, its own app, solves the real copper:++00:02:14.741 --> 00:02:25.992+current density, heat, temperature, the current flowing, the voltage on every net as a river, and then the energy itself, travelling through the board between the two copper layers.++00:02:28.434 --> 00:02:50.272+Then how fast a change crosses the board, one switching cycle slowed a million times, the charge on the copper, the magnetic field around the hot loop, an EMC screen against FCC class B with fifty-six decibels of margin, the ground return and a possible ground loop through two connectors, the noise couplings, and how stiff each power rail is.++00:02:54.734 --> 00:02:55.986+Then the silkscreen:++00:02:56.036 --> 00:03:00.324+every label, polarity mark and pinout, placed by the AI.++00:03:01.734 --> 00:03:04.708+The finished board in KiCad's 3D viewer.++00:03:15.734 --> 00:03:18.396+And underneath, every contact labeled.++00:03:21.734 --> 00:03:22.140+Finish:++00:03:22.190 --> 00:03:28.524+every check passes, and the Gerbers, the BOM and the pick-and-place file are exported.++00:03:28.924 --> 00:03:30.510+And the finished project page:++00:03:30.560 --> 00:03:38.690+the board in 3D, this film, every part with its icon and where to buy it, the analysis gallery, and every step of the build.++00:03:50.924 --> 00:03:56.634+Start to finish, the whole board used five point six percent of a week of Google AI Ultra:++00:03:56.684 --> 00:04:00.474+about two dollars and sixty cents of a two hundred dollar plan.