AMS1117-1.8V

{
  "schema_version": 1,
  "type": "component",
  "slug": "ams1117-1-8v",
  "title": "AMS1117-1.8V",
  "brief": "MSKSEMI Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "pmic",
    "ams1117-1.8v"
  ],
  "component": {
    "mpn": "AMS1117-1.8V",
    "manufacturer": "MSKSEMI",
    "package": "SOT-223",
    "pin_count": 4,
    "category": "PMIC",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2308021705_MSKSEMI-AMS1117-1-8V_C7380514.pdf",
    "parts": {
      "symbol": "ams1117-1-8v.kicad_sym",
      "footprint": "ams1117-1-8v.kicad_mod",
      "model_3d": "ams1117-1-8v-etched.glb",
      "model_3d_plain": "ams1117-1-8v.glb",
      "model_3d_step": "ams1117-1-8v-etched.step",
      "model_3d_step_plain": "ams1117-1-8v.step",
      "lbr": "ams1117-1-8v.lbr"
    },
    "distributor_links": {
      "lcsc": "C7380514"
    },
    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "Ground / common return pin. On the fixed 1.8V version (AMS1117-1.8V), pin 1 (labeled VSS/ADJ in the pinout table) functions as the device ground reference. Connect to system single-point ground."
      },
      {
        "number": "2",
        "name": "VOUT",
        "type": "power_out",
        "description": "Regulated 1.8V output pin (1.764V min / 1.836V max, ±2%). Sources up to 1A of load current. Requires a 10uF tantalum output capacitor for stability."
      },
      {
        "number": "3",
        "name": "VIN",
        "type": "power_in",
        "description": "Unregulated input supply pin. Operating range up to 15V (typ) / 18V (abs max); must be at least Vout + Vdropout (≥3.1V for the 1.8V fixed variant per electrical characteristics). Recommend 10uF tantalum bypass capacitor to GND."
      },
      {
        "number": "4",
        "name": "VOUT",
        "type": "power_out",
        "description": "SOT-223 tab pin, electrically connected to VOUT (pin 2). Acts as the primary heatsinking pad; solder to a copper pour to reduce thermal resistance (θJC ≈ 20°C/W, dropping toward ~30°C/W total with a 5cm×5cm 2-side pour)."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2308021705_MSKSEMI-AMS1117-1-8V_C7380514.pdf",
        "pages": 14,
        "sha256": "768f1a5d913d6211",
        "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@sha256:49f22605ecc1fc70",
      "mark": "drawn"
    },
    "models_3d": [
      {
        "file": "ams1117-1-8v.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": "ams1117-1-8v-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": "25a4fd6ed30bf1fc513b7f510ca33c9818f713460055e5a2c6b3d894bbde1902",
        "checked": "2026-10-16",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Unknown",
      "Package": "SOT-223",
      "Category": "PMIC",
      "Pins": "4"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "ams1117-1.8v"
  ],
  "discovery_pitch": "AMS1117-1.8V (Unknown) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ams1117-1-8v.kicad_sym",
    "ams1117-1-8v.kicad_mod",
    "ams1117-1-8v.glb",
    "ams1117-1-8v.step",
    "ams1117-1-8v-etched.step",
    "ams1117-1-8v.lbr",
    "docs/hero.png",
    "docs/ams1117-1-8v-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "variants": [
    {
      "mpn": "AMS1117-18",
      "kind": "unknown"
    },
    {
      "mpn": "AMS1117CD-18",
      "kind": "unknown"
    }
  ],
  "updated_at": "2026-09-24T16:22:02.119Z"
}