component
LD1117AS18TR
Public Made by Adomby adom
STMicroelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223-3. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
← Commit history
README.md+14@@ -34,6 +34,20 @@ LD1117AS18TR from STMicroelectronics, in a SOT-223-3. Pinout and pin description - Footprint: `Package_TO_SOT_SMD:SOT-223-3_TabPin2` - 3D model: SOT-223-3 (KiCad packages3D, STEP) +## 3D model downloads++Two STEP files. Same geometry, different body top:++| File | Size | Use it when |+|---|---|---|+| [`ld1117as18tr.step`](ld1117as18tr.step) | 64 KB | You want the bare part, or you mark your own boards. |+| [`ld1117as18tr-etched.step`](ld1117as18tr-etched.step) | 1.8 MB | You want the part with `LD1117AS18TR` already on it. |++The marking in the etched file is real recessed geometry cut into the solid, not a+texture or a decal: 454 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": "ld1117as18tr",- "version": "0.1.0",+ "version": "0.2.0", "type": "component", "description": "STMicroelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223-3. Datasheet-verified pinout, KiCad symbol/footprint/3D.", "tags": [
page.json+7−7@@ -4,7 +4,7 @@ "slug": "ld1117as18tr", "title": "LD1117AS18TR", "brief": "STMicroelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223-3. Datasheet-verified pinout, KiCad symbol/footprint/3D.",- "version": "0.1.0",+ "version": "0.2.0", "license": "CC-BY-SA-4.0", "tags": [ "component",@@ -42,13 +42,13 @@ "number": "2", "name": "VOUT", "type": "power_out",- "description": "Regulated 1.8 V output. Sources up to 1 A (1.2 A typical current limit). Requires a minimum 10 \u00b5F output capacitor to GND for loop stability. The SOT-223 tab is internally connected to this pin. Also the package tab: sOT-223 thermal tab, internally shorted to the VOUT pin (pin 2). Provides the primary heat-sinking path (RthJC = 15 \u00b0C/W, RthJA = 110 \u00b0C/W). Solder to a copper pour tied to VOUT to improve thermal performance."+ "description": "Regulated 1.8 V output. Sources up to 1 A (1.2 A typical current limit). Requires a minimum 10 µF output capacitor to GND for loop stability. The SOT-223 tab is internally connected to this pin. Also the package tab: sOT-223 thermal tab, internally shorted to the VOUT pin (pin 2). Provides the primary heat-sinking path (RthJC = 15 °C/W, RthJA = 110 °C/W). Solder to a copper pour tied to VOUT to improve thermal performance." }, { "number": "3", "name": "VIN", "type": "power_in",- "description": "Unregulated DC input supply. Operating input voltage up to 10 V (absolute max 15 V). Dropout \u22641.15 V typ at 1 A, so VIN must be \u2265 VOUT + VDROPOUT. A 100 nF input capacitor is recommended close to the pin."+ "description": "Unregulated DC input supply. Operating input voltage up to 10 V (absolute max 15 V). Dropout ≤1.15 V typ at 1 A, so VIN must be ≥ VOUT + VDROPOUT. A 100 nF input capacitor is recommended close to the pin." } ], "provenance": {@@ -122,9 +122,9 @@ "docs/hero.png", "docs/ld1117as18tr-datasheet.pdf", "viewers/symbol.html",- "viewers/footprint.html"+ "viewers/footprint.html",+ "pads.json" ],- "visibility": {- "public": true- }+ "visibility": "public",+ "description": "STMicroelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223-3. Datasheet-verified pinout, KiCad symbol/footprint/3D." }