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
page.json: fold the "TAB" entry into pin 2. On SOT-223-3_TabPin2 the tab is not a separate pad - it is that lead - so nothing was ever unconnected, but the page listed it as its own pin and pads.json reported pin-not-in-symbol for a pin that cannot exist. Target chosen because net VOUT matches pin 2; the tab's description is merged into that pin rather than dropped.
2 files changed
+4−17
pads.json+2−9@@ -24,14 +24,7 @@ "3" ], "paste_apertures": 0,- "issues": [- {- "kind": "pin-not-in-symbol",- "pin": "TAB",- "name": "VOUT",- "detail": "page.json describes pin \"TAB\" (VOUT) from the datasheet, but the symbol has no such pin, so nothing can connect to it"- }- ],+ "issues": [], "pads": [ { "pad": "1",@@ -85,7 +78,7 @@ "pin": "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 µF output capacitor to GND for loop stability. The SOT-223 tab is internally connected to this pin.",+ "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.", "is_pin1": false, "source": { "geometry": "SOT-223-3_TabPin2.kicad_mod",
page.json+2−8@@ -15,7 +15,7 @@ "mpn": "LD1117AS18TR", "manufacturer": "STMicroelectronics", "package": "SOT-223-3",- "pin_count": 4,+ "pin_count": 3, "category": "PMIC", "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators", "datasheet": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2108072230_STMicroelectronics-LD1117AS18TR_C2845037.pdf",@@ -42,19 +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."+ "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." }, { "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."- },- {- "number": "TAB",- "name": "VOUT",- "type": "power_out",- "description": "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." } ], "provenance": {