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
keep the Hydrogen library id for the molecule
2 files changed
+2−2
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 -- **Both molecules are in the Hydrogen library.** The buck is `john/buck-12v5v-molecule` v1, imported from its wiki page (the page's anchored GLB, footprint and sources). No LrgMed scaffold existed as a molecule, so `john/Scaffold LrgMed 64x64` v1 was made from the wiki's scaffold model, re-anchored at its front-left large pin. Open `scaffold/buck-probe-layout.json` in the Hydrogen 3D Editor to let it snap the stacking height (the file uses 8.4 mm per level, taken from the reference drone layout) and route the wires. (From an Adom container, point `adom-molecule` at `ADOM_HYDROGEN_URL=https://hydrogen.adom.inc`; the container's local proxy does not serve the molecule routes.)+- **Both molecules are in the Hydrogen library.** The buck is `john/buck-12v5v-1a-molecule` v1 in the Hydrogen library, imported from its wiki page (the page's anchored GLB, footprint and sources). No LrgMed scaffold existed as a molecule, so `john/Scaffold LrgMed 64x64` v1 was made from the wiki's scaffold model, re-anchored at its front-left large pin. Open `scaffold/buck-probe-layout.json` in the Hydrogen 3D Editor to let it snap the stacking height (the file uses 8.4 mm per level, taken from the reference drone layout) and route the wires. (From an Adom container, point `adom-molecule` at `ADOM_HYDROGEN_URL=https://hydrogen.adom.inc`; the container's local proxy does not serve the molecule routes.) - **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/v5",+ "sku": "john/buck-12v5v-1a-molecule/v5", "name": "Buck 12V-5V 1A", "position": { "x": 260,