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

@@ -87,4 +87,6 @@ Every step of the build, in order, each with its own page of evidence (checks, s  **24. Finish line**: 0 unconnected, 0 errors, every check passed. [The evidence](steps/24-finish/README.md) +**25. Gerbers, BOM, CPL**: manufacturing files written and checked. [The evidence](steps/25-export/README.md)+ <!-- /aiflow:steps -->

@@ -41,6 +41,14 @@ drawn live, checked against the netlist  ![end](shot-schematic-3-end.png) +**visit 3-end**++![visit 3-end](shot-schematic-3-end.png)++**visit 3-start**++![visit 3-start](shot-schematic-3-start.png)+ ## Clips  ::adom-video{video="/john/tps54202-12v-5v-buck-20261018/render/docs/clips/window-7342418-20261018-183341-10x.mp4" poster="/john/tps54202-12v-5v-buck-20261018/render/docs/clips/window-7342418-20261018-183341-poster.jpg" title="Schematic, visit 3 (10x)" muted="true"}

@@ -22,6 +22,14 @@ the drawn schematic in SPICE: start-up, ripple, load step  ![end](shot-simulation-1-end.png) +**visit 1-end**++![visit 1-end](shot-simulation-1-end.png)++**visit 1-start**++![visit 1-start](shot-simulation-1-start.png)+ ## Clips  ::adom-video{video="/john/tps54202-12v-5v-buck-20261018/render/docs/clips/window-787678-20261018-183804-10x.mp4" poster="/john/tps54202-12v-5v-buck-20261018/render/docs/clips/window-787678-20261018-183804-poster.jpg" title="SPICE simulation, visit 1 (10x)" muted="true"}

@@ -12,6 +12,10 @@ Audit wiki component identity, reusable CAD quality and redistribution evidence  ![start](shot-components-1-start.png) +**visit 1-start**++![visit 1-start](shot-components-1-start.png)+ ## AI usage (Google Antigravity)  36 model calls: 297,979 fresh input, 6,902,609 cached input and 15,456 output tokens.

@@ -29,6 +29,10 @@ Check native board model resolution and inspect the selected library variants in  ![start](shot-models-1-start.png) +**visit 1-start**++![visit 1-start](shot-models-1-start.png)+ ## Clips  ::adom-video{video="/john/tps54202-12v-5v-buck-20261018/render/docs/clips/window-10752118-20261018-193821-10x.mp4" poster="/john/tps54202-12v-5v-buck-20261018/render/docs/clips/window-10752118-20261018-193821-poster.jpg" title="3D models, visit 1 (10x)" muted="true"}

@@ -28,6 +28,18 @@ place the parts for routability, current and heat; the binary packs, checks cour  ![end](shot-placement-2-end.png) +**visit 1-start**++![visit 1-start](shot-placement-1-start.png)++**visit 2-end**++![visit 2-end](shot-placement-2-end.png)++**visit 2-start**++![visit 2-start](shot-placement-2-start.png)+ ## Clips  ::adom-video{video="/john/tps54202-12v-5v-buck-20261018/render/docs/clips/window-3543304-20261018-194858-10x.mp4" poster="/john/tps54202-12v-5v-buck-20261018/render/docs/clips/window-3543304-20261018-194858-poster.jpg" title="Placement, visit 1 (10x)" muted="true"}

@@ -44,6 +44,30 @@ route to 100 percent with the spec's rules, gate with KiCad's DRC, land as undo  ![end](shot-routing-3-end.png) +**visit 1-end**++![visit 1-end](shot-routing-1-end.png)++**visit 1-start**++![visit 1-start](shot-routing-1-start.png)++**visit 2-end**++![visit 2-end](shot-routing-2-end.png)++**visit 2-start**++![visit 2-start](shot-routing-2-start.png)++**visit 3-end**++![visit 3-end](shot-routing-3-end.png)++**visit 3-start**++![visit 3-start](shot-routing-3-start.png)+ ## Clips  ::adom-video{video="/john/tps54202-12v-5v-buck-20261018/render/docs/clips/window-19530338-20261018-202614-10x.mp4" poster="/john/tps54202-12v-5v-buck-20261018/render/docs/clips/window-19530338-20261018-202614-poster.jpg" title="Routing, visit 1 (10x)" muted="true"}

@@ -39,6 +39,22 @@ Heatsink vias where the heat is: for every part that dissipates real power (the  ![end](shot-thermal-vias-2-end.png) +**visit 1-end**++![visit 1-end](shot-thermal-vias-1-end.png)++**visit 1-start**++![visit 1-start](shot-thermal-vias-1-start.png)++**visit 2-end**++![visit 2-end](shot-thermal-vias-2-end.png)++**visit 2-start**++![visit 2-start](shot-thermal-vias-2-start.png)+ ## Clips  ::adom-video{video="/john/tps54202-12v-5v-buck-20261018/render/docs/clips/window-19530338-20261018-204615-10x.mp4" poster="/john/tps54202-12v-5v-buck-20261018/render/docs/clips/window-19530338-20261018-204615-poster.jpg" title="Heatsink vias, visit 1 (10x)" muted="true"}

@@ -49,6 +49,10 @@ pour every net the spec names, keepouts along Kelvin taps, thermal and stitching  ![start](shot-pours-4-start.png) +**end**++![end](shot-pours-4-end.png)+ **visit 1-end**  ![visit 1-end](shot-pours-1-end.png)@@ -73,6 +77,10 @@ pour every net the spec names, keepouts along Kelvin taps, thermal and stitching  ![visit 3-start](shot-pours-3-start.png) +**visit 4-end**++![visit 4-end](shot-pours-4-end.png)+ **visit 4-start**  ![visit 4-start](shot-pours-4-start.png)@@ -85,6 +93,8 @@ pour every net the spec names, keepouts along Kelvin taps, thermal and stitching  ::adom-video{video="/john/tps54202-12v-5v-buck-20261018/render/docs/clips/window-19530338-20261018-220628-10x.mp4" poster="/john/tps54202-12v-5v-buck-20261018/render/docs/clips/window-19530338-20261018-220628-poster.jpg" title="Copper pours, visit 3 (10x)" muted="true"} +::adom-video{video="/john/tps54202-12v-5v-buck-20261018/render/docs/clips/window-19530338-20261018-222543-10x.mp4" poster="/john/tps54202-12v-5v-buck-20261018/render/docs/clips/window-19530338-20261018-222543-poster.jpg" title="Copper pours, visit 4 (10x)" muted="true"}+ ## AI usage (Google Antigravity) -48 model calls: 140,885 fresh input, 9,916,327 cached input and 22,922 output tokens.+66 model calls: 195,444 fresh input, 12,412,488 cached input and 38,517 output tokens.

@@ -38,6 +38,10 @@ Round the board's corners: every sharp outline corner becomes a radius (1.0 mm b  ![start](shot-outline-3-start.png) +**end**++![end](shot-outline-3-end.png)+ **visit 1-end**  ![visit 1-end](shot-outline-1-end.png)@@ -54,6 +58,10 @@ Round the board's corners: every sharp outline corner becomes a radius (1.0 mm b  ![visit 2-start](shot-outline-2-start.png) +**visit 3-end**++![visit 3-end](shot-outline-3-end.png)+ **visit 3-start**  ![visit 3-start](shot-outline-3-start.png)@@ -64,6 +72,8 @@ Round the board's corners: every sharp outline corner becomes a radius (1.0 mm b  ::adom-video{video="/john/tps54202-12v-5v-buck-20261018/render/docs/clips/window-19530338-20261018-220850-10x.mp4" poster="/john/tps54202-12v-5v-buck-20261018/render/docs/clips/window-19530338-20261018-220850-poster.jpg" title="Rounded corners, visit 2 (10x)" muted="true"} +::adom-video{video="/john/tps54202-12v-5v-buck-20261018/render/docs/clips/window-19530338-20261018-223607-10x.mp4" poster="/john/tps54202-12v-5v-buck-20261018/render/docs/clips/window-19530338-20261018-223607-poster.jpg" title="Rounded corners, visit 3 (10x)" muted="true"}+ ## AI usage (Google Antigravity) -14 model calls: 69,356 fresh input, 2,291,356 cached input and 5,539 output tokens.+18 model calls: 82,091 fresh input, 2,905,317 cached input and 6,917 output tokens.

@@ -76,6 +76,10 @@ IPC-2221 on every loaded net, pour and via capacity, the same-layer rule; then t  ![screenshot](shot-current-3-net-VOUT.png) +**end**++![end](shot-current-3-end.png)+ **visit 1-start**  ![visit 1-start](shot-current-1-start.png)@@ -84,14 +88,12 @@ IPC-2221 on every loaded net, pour and via capacity, the same-layer rule; then t  ![visit 2-end](shot-current-2-end.png) -**visit 2-net-GND**--![visit 2-net-GND](shot-current-2-net-GND.png)- ## Clips  ::adom-video{video="/john/tps54202-12v-5v-buck-20261018/render/docs/clips/window-19530338-20261018-221050-10x.mp4" poster="/john/tps54202-12v-5v-buck-20261018/render/docs/clips/window-19530338-20261018-221050-poster.jpg" title="Current, visit 2 (10x)" muted="true"} +::adom-video{video="/john/tps54202-12v-5v-buck-20261018/render/docs/clips/window-19530338-20261018-223749-10x.mp4" poster="/john/tps54202-12v-5v-buck-20261018/render/docs/clips/window-19530338-20261018-223749-poster.jpg" title="Current, visit 3 (10x)" muted="true"}+ ## AI usage (Google Antigravity) -123 model calls: 457,871 fresh input, 16,436,287 cached input and 85,130 output tokens.+127 model calls: 470,064 fresh input, 17,070,944 cached input and 86,428 output tokens.

@@ -71,6 +71,10 @@ copper and vias at every hot tab against the rise budget; then the AI's own temp  ![screenshot](shot-thermal-2-net-GND.png) +**end**++![end](shot-thermal-2-end.png)+ **visit 1-end**  ![visit 1-end](shot-thermal-1-end.png)@@ -87,22 +91,20 @@ copper and vias at every hot tab against the rise budget; then the AI's own temp  ![visit 1-start](shot-thermal-1-start.png) -**visit 2-net-GND**--![visit 2-net-GND](shot-thermal-2-net-GND.png)+**visit 2-end** -**visit 2-net-VOUT**+![visit 2-end](shot-thermal-2-end.png) -![visit 2-net-VOUT](shot-thermal-2-net-VOUT.png)--**visit 2-start**+**visit 2-net-GND** -![visit 2-start](shot-thermal-2-start.png)+![visit 2-net-GND](shot-thermal-2-net-GND.png)  ## Clips  ::adom-video{video="/john/tps54202-12v-5v-buck-20261018/render/docs/clips/window-19530338-20261018-221841-10x.mp4" poster="/john/tps54202-12v-5v-buck-20261018/render/docs/clips/window-19530338-20261018-221841-poster.jpg" title="Thermal, visit 1 (10x)" muted="true"} +::adom-video{video="/john/tps54202-12v-5v-buck-20261018/render/docs/clips/window-19530338-20261018-224000-10x.mp4" poster="/john/tps54202-12v-5v-buck-20261018/render/docs/clips/window-19530338-20261018-224000-poster.jpg" title="Thermal, visit 2 (10x)" muted="true"}+ ## AI usage (Google Antigravity) -19 model calls: 79,610 fresh input, 1,895,826 cached input and 18,722 output tokens.+37 model calls: 127,382 fresh input, 4,979,006 cached input and 24,253 output tokens.

@@ -36,3 +36,7 @@ the fields on the board: adom-fields solves the current density of every loaded ## Clips  ::adom-video{video="/john/tps54202-12v-5v-buck-20261018/render/docs/clips/window-7997818-20261018-224547-10x.mp4" poster="/john/tps54202-12v-5v-buck-20261018/render/docs/clips/window-7997818-20261018-224547-poster.jpg" title="Fields, visit 1 (10x)" muted="true"}++## AI usage (Google Antigravity)++5 model calls: 14,292 fresh input, 897,517 cached input and 1,579 output tokens.

@@ -34,6 +34,14 @@ the copper pour walkthrough: every poured net (and every loaded, wide or Kelvin  ![screenshot](shot-nets-1-net-SW.png) +**end**++![end](shot-nets-1-end.png)++**visit 1-end**++![visit 1-end](shot-nets-1-end.png)+ **visit 1-net-GND**  ![visit 1-net-GND](shot-nets-1-net-GND.png)@@ -53,3 +61,11 @@ the copper pour walkthrough: every poured net (and every loaded, wide or Kelvin **visit 1-start**  ![visit 1-start](shot-nets-1-start.png)++## Clips++::adom-video{video="/john/tps54202-12v-5v-buck-20261018/render/docs/clips/window-19530338-20261018-225853-10x.mp4" poster="/john/tps54202-12v-5v-buck-20261018/render/docs/clips/window-19530338-20261018-225853-poster.jpg" title="Pour walkthrough, visit 1 (10x)" muted="true"}++## AI usage (Google Antigravity)++2 model calls: 9,133 fresh input, 369,068 cached input and 535 output tokens.

@@ -38,3 +38,7 @@ Make both faces useful in real service: references and values, verified connecto **visit 1-start**  ![visit 1-start](shot-silkscreen-1-start.png)++## AI usage (Google Antigravity)++98 model calls: 492,151 fresh input, 11,644,749 cached input and 86,387 output tokens.

@@ -41,3 +41,7 @@ the 3D walkthrough: the viewer opened from the editor, then fit, top, tilt, orbi ## Clips  ::adom-video{video="/john/tps54202-12v-5v-buck-20261018/render/docs/clips/window-123799660-20261018-233132-10x.mp4" poster="/john/tps54202-12v-5v-buck-20261018/render/docs/clips/window-123799660-20261018-233132-poster.jpg" title="3D board, visit 1 (10x)" muted="true"}++## AI usage (Google Antigravity)++17 model calls: 59,156 fresh input, 3,070,992 cached input and 7,475 output tokens.

@@ -22,4 +22,4 @@ finish refuses until everything is true; the AI cuts the video and delivers  ## AI usage (Google Antigravity) -2 model calls: 5,218 fresh input, 382,852 cached input and 362 output tokens.+18 model calls: 52,137 fresh input, 3,665,931 cached input and 6,452 output tokens.

@@ -0,0 +1,45 @@+# Step 25: Gerbers, BOM, CPL++The finish line for the human: Gerbers, drill, BOM and pick-and-place (CPL) written from the finished board, checked, and announced in the chat with where every file is.++## Visits++- 2026-10-18T23:36:55Z++## What the binary checked++### export++- **board**: ./aiflow-run/board-5.kicad_pcb+- **boardSha256**: 84b3b6a4807d6ef072794c66e1b65a74592695e721dec3b347c711e38745e244+- **bom**: dnp 0; fitted 31; lines 23; refs 31+- **bomSource**: the board's footprints (Value, footprint, MPN and Manufacturer properties, DNP and exclude-from-BOM attributes)+- **cpl**: bottomRotationsNotChecked 0; refs 38; topRotationsChecked 38+- **dir**: /home/adom/project/tps54202-buck-12v5v/aiflow-run/manufacturing+- **drill**: files 2; hits 29; platedHits 29; platedPadHoles 10; unplatedHits 0; unplatedPadHoles 0; vias 19+- **files**: 13 item(s)+- **fillsGerbers**: pass True+- **fillsSaved**: filled 4; pass True; shouldFill 4+- **gerbers**: boardCopperLayers 2; copperLayers 2; files 9+- **kicadCli**: /home/adom/project/adom_modules/adom/adom-aiflow/tools/kicad-cli-remote+- **notes**: test points still in the BOM or pick and place (bare copper: set Exclude from BOM and position files): TP1, TP2, TP3, TP4, TP5, TP6, TP7, machine contacts or pins the fab would place (fitted after assembly: set DNP or exclude from position files): J1, J2, J3, J4, J5, J6, MP1, MP2, MP3, MP4+- **pass**: True+- **problems**: 0 item(s)++## Screenshots and drawings++**start**++![start](shot-export-1-start.png)++**visit 1-start**++![visit 1-start](shot-export-1-start.png)++## Clips++::adom-video{video="/john/tps54202-12v-5v-buck-20261018/render/docs/clips/window-19530338-20261018-233655-10x.mp4" poster="/john/tps54202-12v-5v-buck-20261018/render/docs/clips/window-19530338-20261018-233655-poster.jpg" title="Gerbers, BOM, CPL, visit 1 (10x)" muted="true"}++## AI usage (Google Antigravity)++2 model calls: 5,289 fresh input, 393,775 cached input and 423 output tokens.