AMS1117CD-1.8

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  "type": "component",
  "slug": "ams1117cd-1-8",
  "title": "AMS1117CD-1.8",
  "brief": "Advanced Monolithic Systems Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-252. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
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  "component": {
    "mpn": "AMS1117CD-1.8",
    "manufacturer": "Advanced Monolithic Systems",
    "package": "TO-252",
    "pin_count": 4,
    "category": "PMIC",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/e6935943fc6b1bbf350a1a0f3e90dc4a.pdf",
    "parts": {
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    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference pin for the fixed 1.8V regulator. Also used as the negative-side sense return for the internal Kelvin-connected output divider."
      },
      {
        "number": "2",
        "name": "VOUT",
        "type": "power_out",
        "description": "Regulated 1.8V output (1.773V-1.827V typ at TJ=25°C). Requires at least 22µF solid tantalum output capacitor for stability. Rated up to 1A output current."
      },
      {
        "number": "3",
        "name": "VIN",
        "type": "power_in",
        "description": "Unregulated supply input. Absolute maximum 15V. Requires (VIN - VOUT) ≥ ~1.1V dropout at 0.8A to maintain regulation; typical VIN for the 1.8V variant is 3.3V."
      },
      {
        "number": "TAB",
        "name": "VOUT",
        "type": "power_out",
        "description": "Metal tab, electrically connected to VOUT. Serves as the primary thermal path (θJC = 15°C/W); solder to a copper pour to lower junction-to-ambient thermal resistance."
      }
    ],
    "provenance": {
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        "url": "https://datasheet.lcsc.com/datasheet/pdf/e6935943fc6b1bbf350a1a0f3e90dc4a.pdf",
        "pages": 8,
        "sha256": "189a2651878a87d5",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 4,
        "described": 4,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
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      "footprint": "viewers/footprint.html"
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        "centre_offset_mm": 0,
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        "sha256": "3eb4c99603a4fe837c2fe9308bc174769ded87a785a0df48d2dc441432ee8b4c",
        "checked": "2026-10-07",
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        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
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        "sha256": "72051cf6c8b02e817b8ca2e571bf3e8f10b28303228d468e97b19e53def4a159",
        "checked": "2026-10-16",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Advanced Monolithic Systems",
      "Package": "TO-252",
      "Category": "PMIC",
      "Pins": "4"
    }
  },
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      "mpn": "AMS1117-1.8",
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    {
      "mpn": "AMS1117CS-1.8",
      "kind": "unknown"
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  "discovery_pitch": "AMS1117CD-1.8 (Advanced Monolithic Systems) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
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  "updated_at": "2026-09-24T16:23:22.944Z"
}