component
BL1117-CX
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.
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README.md+14@@ -32,6 +32,20 @@ BL1117-CX from BL Shanghai Belling, in a SOT-223-4. Pinout and pin descriptions - 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-cx.step`](bl1117-cx.step) | 64 KB | You want the bare part, or you mark your own boards. |+| [`bl1117-cx-etched.step`](bl1117-cx-etched.step) | 1.1 MB | You want the part with `BL1117-CX` already on it. |++The marking in the etched file is real recessed geometry cut into the solid, not a+texture or a decal: 306 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-cx",- "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-cx", "title": "BL1117-CX", "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/ADJ", "type": "power_in",- "description": "Ground (fixed-output versions) or Adjust feedback pin (BL1117-ADJ). On the ADJ variant this pin sets Vout via an external divider following Vout = 1.25 \u00d7 (1 + R2/R1) + I_ADJ \u00d7 R2, with I_ADJ typically 55 \u00b5A (max 120 \u00b5A)."+ "description": "Ground (fixed-output versions) or Adjust feedback pin (BL1117-ADJ). On the ADJ variant this pin sets Vout via an external divider following Vout = 1.25 × (1 + R2/R1) + I_ADJ × R2, with I_ADJ typically 55 µA (max 120 µA)." }, { "number": "2", "name": "Vout", "type": "power_out",- "description": "Regulated output. Delivers up to 1A with 1.3V typical dropout at 1A; recommended output capacitor is 10\u00b5F tantalum or MLCC (ESR 3m\u03a9-22\u03a9). SOT-223 tab is internally connected to this pin."+ "description": "Regulated output. Delivers up to 1A with 1.3V typical dropout at 1A; recommended output capacitor is 10µF tantalum or MLCC (ESR 3mΩ-22Ω). SOT-223 tab is internally connected to this pin." }, { "number": "3", "name": "Vin", "type": "power_in",- "description": "Unregulated input supply. Absolute max 18V (20V for BL1117-12V); recommended input range up to 16V. A 10\u00b5F tantalum or MLCC bypass capacitor is recommended close to the pin."+ "description": "Unregulated input supply. Absolute max 18V (20V for BL1117-12V); recommended input range up to 16V. A 10µF tantalum or MLCC bypass capacitor is recommended close to the pin." } ], "provenance": {@@ -120,6 +120,9 @@ "docs/hero.png", "docs/bl1117-cx-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" }