component
BL1117-18CX
Public Made by Adomby adom
BL Shanghai Belling Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223-4. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
← Commit history
README.md+14@@ -34,6 +34,20 @@ BL1117-18CX from BL Shanghai Belling, in a SOT-223-4. Pinout and pin description - Footprint: `Package_TO_SOT_SMD:SOT-223` - 3D model: SOT-223-4 (KiCad packages3D, STEP) +## 3D model downloads++Two STEP files. Same geometry, different body top:++| File | Size | Use it when |+|---|---|---|+| [`bl1117-18cx.step`](bl1117-18cx.step) | 64 KB | You want the bare part, or you mark your own boards. |+| [`bl1117-18cx-etched.step`](bl1117-18cx-etched.step) | 1.5 MB | You want the part with `BL1117-18CX` already on it. |++The marking in the etched file is real recessed geometry cut into the solid, not a+texture or a decal: 400 faces against 75 in the bare model. It+survives export, section views, and rendering in any CAD tool, and it drops straight+into KiCad or Fusion with no extra setup.+ ## Provenance Data extracted from the manufacturer datasheet, not a distributor listing:
package.json+1−1@@ -1,6 +1,6 @@ { "slug": "bl1117-18cx",- "version": "0.1.0",+ "version": "0.2.0", "type": "component", "description": "BL Shanghai Belling Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223-4. Datasheet-verified pinout, KiCad symbol/footprint/3D.", "tags": [
page.json+9−6@@ -4,7 +4,7 @@ "slug": "bl1117-18cx", "title": "BL1117-18CX", "brief": "BL Shanghai Belling Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223-4. Datasheet-verified pinout, KiCad symbol/footprint/3D.",- "version": "0.1.0",+ "version": "0.2.0", "license": "CC-BY-SA-4.0", "tags": [ "component",@@ -34,19 +34,19 @@ "number": "1", "name": "GND", "type": "power_in",- "description": "Ground / common return for the regulator. Also serves as the reference node for the internal bandgap and feedback network. The SOT-223 tab is electrically connected to this pin and should be soldered to a copper pour to improve heat dissipation (\u03b8JC \u2248 20\u00b0C/W)."+ "description": "Ground / common return for the regulator. Also serves as the reference node for the internal bandgap and feedback network. The SOT-223 tab is electrically connected to this pin and should be soldered to a copper pour to improve heat dissipation (θJC ≈ 20°C/W)." }, { "number": "2", "name": "Vout", "type": "power_out",- "description": "Regulated 1.8V output (1.764V-1.836V over 0\u2264Iout\u22641A, Vin=3.8V). Requires a 10\u00b5F tantalum or MLCC output capacitor for stability; ESR range 3m\u03a9-22\u03a9. Maximum continuous load current is 1A subject to thermal limits."+ "description": "Regulated 1.8V output (1.764V-1.836V over 0≤Iout≤1A, Vin=3.8V). Requires a 10µF tantalum or MLCC output capacitor for stability; ESR range 3mΩ-22Ω. Maximum continuous load current is 1A subject to thermal limits." }, { "number": "3", "name": "Vin", "type": "power_in",- "description": "Unregulated input supply, recommended operating range up to 12V (absolute max 15V). Must be at least Vout + Vdropout (\u22481.3V at 1A). A 10\u00b5F tantalum or MLCC bypass capacitor to GND is recommended at this pin."+ "description": "Unregulated input supply, recommended operating range up to 12V (absolute max 15V). Must be at least Vout + Vdropout (≈1.3V at 1A). A 10µF tantalum or MLCC bypass capacitor to GND is recommended at this pin." } ], "provenance": {@@ -120,6 +120,9 @@ "docs/hero.png", "docs/bl1117-18cx-datasheet.pdf", "viewers/symbol.html",- "viewers/footprint.html"- ]+ "viewers/footprint.html",+ "pads.json"+ ],+ "description": "BL Shanghai Belling Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223-4. Datasheet-verified pinout, KiCad symbol/footprint/3D.",+ "visibility": "public" }