project
12 V to 5 V / 1 A Buck Molecule (TPS54202)
Public Unreviewedby John Lauer
An independently designed 12 V to 5 V, 1 A synchronous buck molecule (TI TPS54202), with calculations, ngspice and PSpice simulation, KiCad 10 schematic and board, and the board laid out and analysed with adom-aiflow.
← Commit history
Link the published molecule page; layout names john/buck-12v5v-1a-molecule
3 files changed
+4−2
README.md+2@@ -28,6 +28,8 @@ The board has not been fabricated yet. Everything below is design and simulation ## Molecule interface +The molecule has its own page with the KiCad project, STEP and anchored GLB: [john/buck-12v5v-1a-molecule](https://wiki.adom.inc/john/buck-12v5v-1a-molecule).+ | contact | net | | contact | net | |---|---|---|---|---| | J1 | VIN | | J4 | VOUT |
docs/scaffold.md+1−1@@ -61,7 +61,7 @@ Probe the ripple with the shortest ground you can. A long ground lead picks up t ## What is not confirmed yet -- **The molecule is not yet in the Hydrogen molecule library.** The layout names it `john/buck-12v5v-molecule/v1` and the scaffold `adom/Scaffold LrgMed 64x64/v1`. Import the molecule (`adom-molecule import`) and open the layout in the Hydrogen 3D Editor to confirm both names. The editor will also snap the stacking height (the file uses 8.4 mm per level, taken from the reference drone layout) and route the wires.+- **The molecule is published but not yet in the Hydrogen molecule library.** Its wiki page is [john/buck-12v5v-1a-molecule](https://wiki.adom.inc/john/buck-12v5v-1a-molecule) (private). The layout names it `john/buck-12v5v-1a-molecule/v1` and the scaffold `adom/Scaffold LrgMed 64x64/v1`. Import it with `adom-molecule import john/buck-12v5v-1a-molecule` from a container that reaches the Hydrogen molecule API (this one returned 404), then open the layout in the Hydrogen 3D Editor to confirm both names. The editor will also snap the stacking height (the file uses 8.4 mm per level, taken from the reference drone layout) and route the wires. - **The control panel's position in the preview is approximate.** The editor places the panel itself; the wires name panel contacts, not coordinates. - **Nothing has been built.** The probe plan is what the first powered board will be checked against.
scaffold/buck-probe-layout.json+1−1@@ -42,7 +42,7 @@ } }, "Buck 12V-5V 1A": {- "sku": "john/buck-12v5v-molecule/v1",+ "sku": "john/buck-12v5v-1a-molecule/v1", "name": "Buck 12V-5V 1A", "position": { "x": 260,