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.
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Publish 0.2.1
4 files changed
+557−18
ld1117as18tr-hero.glbadded⋯ 1 unchanged line ⋯
ld1117as18tr-hero.overlay.jsonadded+163@@ -0,0 +1,163 @@+{+ "spec": "adom-hero 1.4",+ "mpn": "LD1117AS18TR",+ "kind": "component + footprint reference art",+ "board_use": false,+ "plane_z_mm": -0.02,+ "units": "metre",+ "upAxis": "Z",+ "layers": {+ "pad_outlines": {+ "material": "Footprint pads - teal dashed outlines - 50 percent opacity",+ "rgba": [+ 0.0,+ 0.902,+ 0.863,+ 0.5+ ],+ "pads": 4,+ "span_mm": 8.4,+ "dash_mm": 0.21,+ "gap_mm": 0.126,+ "pad_stroke_mm": 0.0504+ },+ "silkscreen": {+ "material": "Silkscreen reference lines - 30 percent opacity",+ "rgba": [+ 0.92,+ 0.96,+ 1.0,+ 0.3+ ],+ "footprint_items": 5,+ "pin1": {+ "source": "footprint silkscreen",+ "pad": "1"+ }+ },+ "signal_names": {+ "material": "Signal names - 50 percent opacity",+ "rgba": [+ 0.92,+ 0.96,+ 1.0,+ 0.5+ ],+ "font": "DejaVu Sans Mono",+ "labels": 3,+ "sides": "top + mirrored underside (single-sided)",+ "fallback_to_pad_number": 0+ }+ },+ "align": {+ "ok": true,+ "centre_offset_mm": 0.0,+ "tolerance_mm": 0.664,+ "orientation_flipped": false,+ "contacts_bbox_mm": [+ -3.5,+ 3.5,+ -2.684,+ 2.684+ ],+ "pads_bbox_mm": [+ -4.15,+ 4.15,+ -3.05,+ 3.05+ ],+ "seating_z_mm": 0.0+ },+ "sources": {+ "glb": "ld1117as18tr-etched.glb",+ "glb_sha256": "1817d8b45168b622c672cb48c4ea69c777c347ac6ebb55890021c80c74e273a7",+ "footprint": "ld1117as18tr.kicad_mod",+ "footprint_sha256": "8ae5f03e2c16377abed15e51af6864e23a934e1457b97fb7ea930e17fa99f11d",+ "pins": "page.json component.pins",+ "pins_sha256": "da523e88a63da62721bb995a4f0d25f47bb7a10c614c01277fde98f6ce1ab8fb"+ },+ "generator": "adom-wiki 1.8.24 (component_hero)",+ "labels": [+ {+ "pad": "1",+ "text": "ADJ/GND",+ "x": -4.3,+ "y": -2.3,+ "align": "right",+ "vertical": false,+ "h": 0.6+ },+ {+ "pad": "2",+ "text": "VOUT",+ "x": -4.3,+ "y": 0.0,+ "align": "right",+ "vertical": false,+ "h": 0.6+ },+ {+ "pad": "3",+ "text": "VIN",+ "x": -4.3,+ "y": 2.3,+ "align": "right",+ "vertical": false,+ "h": 0.6+ }+ ],+ "pads": [+ {+ "number": "1",+ "shape": "roundrect",+ "center_mm": [+ -3.15,+ -2.3+ ],+ "size_mm": [+ 2.0,+ 1.5+ ],+ "rot": 0.0+ },+ {+ "number": "2",+ "shape": "roundrect",+ "center_mm": [+ -3.15,+ 0.0+ ],+ "size_mm": [+ 2.0,+ 1.5+ ],+ "rot": 0.0+ },+ {+ "number": "2",+ "shape": "roundrect",+ "center_mm": [+ 3.15,+ 0.0+ ],+ "size_mm": [+ 2.0,+ 3.8+ ],+ "rot": 0.0+ },+ {+ "number": "3",+ "shape": "roundrect",+ "center_mm": [+ -3.15,+ 2.3+ ],+ "size_mm": [+ 2.0,+ 1.5+ ],+ "rot": 0.0+ }+ ]+}
package.json+376−4@@ -1,6 +1,6 @@ { "slug": "ld1117as18tr",- "version": "0.2.0",+ "version": "0.2.1", "type": "component", "description": "STMicroelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223-3. Datasheet-verified pinout, KiCad symbol/footprint/3D.", "tags": [@@ -20,20 +20,211 @@ "ld1117as18tr.kicad_mod", "ld1117as18tr.glb", "ld1117as18tr.step",+ "ld1117as18tr-etched.step", "ld1117as18tr.lbr", "docs/hero.png", "docs/ld1117as18tr-datasheet.pdf", "viewers/symbol.html", "viewers/footprint.html",- "pads.json"+ "pads.json",+ "ld1117as18tr-etched.glb",+ "ld1117as18tr-hero.glb",+ "ld1117as18tr-hero.overlay.json" ], "metadata": {+ "specs": {+ "Manufacturer": "STMicroelectronics",+ "Package": "SOT-223-3",+ "Category": "PMIC",+ "Pins": "4"+ }, "characteristics": { "version": 1, "source": "datasheet",+ "datasheet_sha256": "5cf3aab5b1478366", "rows": [ {- "name": "Input voltage",+ "name": "Output voltage",+ "symbol": "VO",+ "kind": "electrical",+ "unit": "V",+ "min": 1.764,+ "typ": 1.8,+ "max": 1.836,+ "conditions": "VI = 3.8 V, IO = 10 mA, TJ = 25 °C",+ "source_page": 7,+ "source": "datasheet"+ },+ {+ "name": "Output voltage",+ "symbol": "VO",+ "kind": "electrical",+ "unit": "V",+ "min": 1.728,+ "typ": null,+ "max": 1.872,+ "conditions": "IO = 0 to 1 A, VI = 3.3 to 8 V",+ "source_page": 7,+ "source": "datasheet"+ },+ {+ "name": "Line regulation",+ "symbol": "ΔVO",+ "kind": "electrical",+ "unit": "mV",+ "min": null,+ "typ": 1,+ "max": 6,+ "conditions": "VI = 3.3 to 8 V, IO = 0 mA",+ "source_page": 7,+ "source": "datasheet"+ },+ {+ "name": "Load regulation",+ "symbol": "ΔVO",+ "kind": "electrical",+ "unit": "mV",+ "min": null,+ "typ": 1,+ "max": 10,+ "conditions": "VI = 3.3 V, IO = 0 to 1 A",+ "source_page": 7,+ "source": "datasheet"+ },+ {+ "name": "Temperature stability",+ "symbol": "ΔVO",+ "kind": "electrical",+ "unit": "%",+ "min": null,+ "typ": null,+ "max": 0.5,+ "conditions": "",+ "source_page": 7,+ "source": "datasheet"+ },+ {+ "name": "Long term stability",+ "symbol": "ΔVO",+ "kind": "electrical",+ "unit": "%",+ "min": null,+ "typ": null,+ "max": 0.3,+ "conditions": "1000 hrs, TJ = 125 °C",+ "source_page": 7,+ "source": "datasheet"+ },+ {+ "name": "Operating input voltage",+ "symbol": "VI",+ "kind": "electrical",+ "unit": "V",+ "min": null,+ "typ": null,+ "max": 10,+ "conditions": "IO = 100 mA",+ "source_page": 7,+ "source": "datasheet"+ },+ {+ "name": "Quiescent current",+ "symbol": "Id",+ "kind": "electrical",+ "unit": "mA",+ "min": null,+ "typ": 5,+ "max": 10,+ "conditions": "VI ≤ 8 V, IO = 0 mA",+ "source_page": 7,+ "source": "datasheet"+ },+ {+ "name": "Output current",+ "symbol": "IO",+ "kind": "electrical",+ "unit": "mA",+ "min": 1000,+ "typ": null,+ "max": null,+ "conditions": "VI - VO = 5 V, TJ = 25 °C",+ "source_page": 7,+ "source": "datasheet"+ },+ {+ "name": "Output noise voltage",+ "symbol": "eN",+ "kind": "electrical",+ "unit": "µV",+ "min": null,+ "typ": null,+ "max": 100,+ "conditions": "B = 10 Hz to 10 kHz, TJ = 25 °C",+ "source_page": 8,+ "source": "datasheet"+ },+ {+ "name": "Supply voltage rejection",+ "symbol": "SVR",+ "kind": "electrical",+ "unit": "dB",+ "min": 60,+ "typ": 80,+ "max": null,+ "conditions": "IO = 40 mA, f = 120 Hz, VI - VO = 3 V, Vripple = 1 VPP",+ "source_page": 8,+ "source": "datasheet"+ },+ {+ "name": "Dropout voltage",+ "symbol": "VD",+ "kind": "electrical",+ "unit": "V",+ "min": null,+ "typ": 1,+ "max": 1.1,+ "conditions": "IO = 100 mA",+ "source_page": 8,+ "source": "datasheet"+ },+ {+ "name": "Dropout voltage",+ "symbol": "VD",+ "kind": "electrical",+ "unit": "V",+ "min": null,+ "typ": 1.05,+ "max": 1.15,+ "conditions": "IO = 500 mA",+ "source_page": 8,+ "source": "datasheet"+ },+ {+ "name": "Dropout voltage",+ "symbol": "VD",+ "kind": "electrical",+ "unit": "V",+ "min": null,+ "typ": 1.15,+ "max": 1.3,+ "conditions": "IO = 1 A",+ "source_page": 8,+ "source": "datasheet"+ },+ {+ "name": "Thermal regulation",+ "symbol": "ΔVO(pwr)",+ "kind": "thermal",+ "unit": "%/W",+ "min": null,+ "typ": 0.08,+ "max": 0.2,+ "conditions": "Ta = 25 °C, 30 ms pulse",+ "source_page": 8,+ "source": "datasheet"+ },+ {+ "name": "DC input voltage", "symbol": "VIN", "kind": "absolute_maximum", "unit": "V",@@ -43,8 +234,189 @@ "conditions": "", "source_page": 5, "source": "datasheet"+ },+ {+ "name": "Power dissipation",+ "symbol": "PD",+ "kind": "absolute_maximum",+ "unit": "W",+ "min": null,+ "typ": null,+ "max": 12,+ "conditions": "",+ "source_page": 5,+ "source": "datasheet"+ },+ {+ "name": "Storage temperature range",+ "symbol": "TSTG",+ "kind": "absolute_maximum",+ "unit": "°C",+ "min": -40,+ "typ": null,+ "max": 150,+ "conditions": "",+ "source_page": 5,+ "source": "datasheet"+ },+ {+ "name": "Operating junction temperature range",+ "symbol": "TOP",+ "kind": "absolute_maximum",+ "unit": "°C",+ "min": 0,+ "typ": null,+ "max": 125,+ "conditions": "",+ "source_page": 5,+ "source": "datasheet"+ },+ {+ "name": "Thermal resistance junction-case, SOT-223",+ "symbol": "RthJC",+ "kind": "thermal",+ "unit": "°C/W",+ "min": null,+ "typ": 15,+ "max": null,+ "conditions": "",+ "source_page": 5,+ "source": "datasheet"+ },+ {+ "name": "Thermal resistance junction-ambient, SOT-223",+ "symbol": "RthJA",+ "kind": "thermal",+ "unit": "°C/W",+ "min": null,+ "typ": 110,+ "max": null,+ "conditions": "",+ "source_page": 5,+ "source": "datasheet" } ] }- }+ },+ "component": {+ "mpn": "LD1117AS18TR",+ "manufacturer": "STMicroelectronics",+ "package": "SOT-223-3",+ "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",+ "parts": {+ "symbol": "ld1117as18tr.kicad_sym",+ "footprint": "ld1117as18tr.kicad_mod",+ "model_3d": "ld1117as18tr-hero.glb",+ "model_3d_plain": "ld1117as18tr.glb",+ "model_3d_step": "ld1117as18tr-etched.step",+ "model_3d_step_plain": "ld1117as18tr.step",+ "lbr": "ld1117as18tr.lbr"+ },+ "distributor_links": {+ "digikey": "497-1226-2-ND",+ "mouser": "511-LD1117AS18",+ "lcsc": "C2845037"+ },+ "pins": [+ {+ "number": "1",+ "name": "ADJ/GND",+ "type": "power_in",+ "description": "Ground reference pin for the fixed-output versions (LD1117AS18 uses this pin as GND). On the adjustable variant this same pin is the ADJ feedback input (VREF = 1.25 V to the external divider). Connect to system ground for the LD1117AS18TR (1.8 V fixed)."+ },+ {+ "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 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 ≤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": {+ "extractor": "ds2sf",+ "datasheet": {+ "url": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2108072230_STMicroelectronics-LD1117AS18TR_C2845037.pdf",+ "pages": 24,+ "sha256": "5cf3aab5b1478366",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 4,+ "described": 4,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ },+ "pin1": {+ "pad": "1",+ "at": [+ -3.15,+ -2.3+ ],+ "corner": "top-left",+ "source": "silk-marker",+ "derived_from": "SOT-223-3_TabPin2@sha256:8ae5f03e2c16377a",+ "mark": "drawn"+ },+ "models_3d": [+ {+ "file": "ld1117as18tr.step",+ "role": "plain",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 7,+ 6.5,+ 1.7+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "77ad6dbacc493cb619c728f26d2ddcf461eb0feb6b977b47d01d51e67016f654",+ "checked": "2026-10-07",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ },+ {+ "file": "ld1117as18tr-etched.step",+ "role": "eda",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 7,+ 6.5,+ 1.7+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "394ba95eb2647066f001ccda60b639251d901c15f26ce23552ce33b1d7d67096",+ "checked": "2026-10-16",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ }+ ]+ },+ "title": "LD1117AS18TR",+ "brief": "STMicroelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223-3. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",+ "discovery_triggers": [+ "ld1117as18tr"+ ],+ "discovery_pitch": "LD1117AS18TR (STMicroelectronics) component page with datasheet-verified CAD.",+ "visibility": "public" }
page.json+18−14@@ -4,7 +4,7 @@ "slug": "ld1117as18tr", "title": "LD1117AS18TR", "brief": "STMicroelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223-3. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",- "version": "0.2.0",+ "version": "0.2.1", "license": "CC-BY-SA-4.0", "tags": [ "component",@@ -22,7 +22,7 @@ "parts": { "symbol": "ld1117as18tr.kicad_sym", "footprint": "ld1117as18tr.kicad_mod",- "model_3d": "ld1117as18tr-etched.glb",+ "model_3d": "ld1117as18tr-hero.glb", "model_3d_plain": "ld1117as18tr.glb", "model_3d_step": "ld1117as18tr-etched.step", "model_3d_step_plain": "ld1117as18tr.step",@@ -93,12 +93,12 @@ "origin": "footprint origin = pad-pattern centre", "seat": "z = 0", "extents_mm": [- 7.0,+ 7, 6.5, 1.7 ],- "zmin_mm": -0.0,- "centre_offset_mm": 0.0,+ "zmin_mm": 0,+ "centre_offset_mm": 0, "footprint_binding": "identity", "sha256": "77ad6dbacc493cb619c728f26d2ddcf461eb0feb6b977b47d01d51e67016f654", "checked": "2026-10-07",@@ -112,12 +112,12 @@ "origin": "footprint origin = pad-pattern centre", "seat": "z = 0", "extents_mm": [- 7.0,+ 7, 6.5, 1.7 ],- "zmin_mm": -0.0,- "centre_offset_mm": 0.0,+ "zmin_mm": 0,+ "centre_offset_mm": 0, "footprint_binding": "identity", "sha256": "394ba95eb2647066f001ccda60b639251d901c15f26ce23552ce33b1d7d67096", "checked": "2026-10-16",@@ -424,11 +424,13 @@ "docs/hero.png", "docs/ld1117as18tr-datasheet.pdf", "viewers/symbol.html",- "viewers/footprint.html"+ "viewers/footprint.html",+ "pads.json",+ "ld1117as18tr-etched.glb",+ "ld1117as18tr-hero.glb",+ "ld1117as18tr-hero.overlay.json" ],- "visibility": {- "public": true- },+ "visibility": "public", "variants": [ { "mpn": "LD1117AS18TR",@@ -443,5 +445,7 @@ "kind": "unknown" } ],- "updated_at": "2026-09-24T23:46:32.795Z"-}+ "updated_at": "2026-09-24T23:46:32.795Z",+ "description": "STMicroelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223-3. Datasheet-verified pinout, KiCad symbol/footprint/3D.",+ "org": "adom"+}