AMS1117-ADJ

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  "type": "component",
  "slug": "ams1117-adj",
  "title": "AMS1117-ADJ",
  "brief": "UMW Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.1",
  "license": "CC-BY-SA-4.0",
  "tags": [
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    "pmic",
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  "component": {
    "mpn": "AMS1117-ADJ",
    "manufacturer": "UMW",
    "package": "SOT-223",
    "pin_count": 3,
    "category": "PMIC",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/33adf36a71e298ca40968a589cb6db3a.pdf",
    "parts": {
      "symbol": "ams1117-adj.kicad_sym",
      "footprint": "ams1117-adj.kicad_mod",
      "model_3d": "ams1117-adj-etched.glb",
      "model_3d_plain": "ams1117-adj.glb",
      "model_3d_step": "ams1117-adj-etched.step",
      "model_3d_step_plain": "ams1117-adj.step",
      "lbr": "ams1117-adj.lbr"
    },
    "distributor_links": {
      "lcsc": "C347224"
    },
    "pins": [
      {
        "number": "1",
        "name": "ADJ",
        "type": "input",
        "description": "Adjust pin. Connect to the mid-point of an external resistor divider between VOUT and GND to set the output voltage per VOUT = VREF x (1 + R2/R1) + IADJ x R2, where VREF = 1.25V typical and IADJ = 60 uA typical (120 uA max)."
      },
      {
        "number": "2",
        "name": "VOUT",
        "type": "power_out",
        "description": "Regulated output voltage. Requires an output capacitor for stability (22 uF tantalum recommended). Rated for 1A continuous output current."
      },
      {
        "number": "3",
        "name": "VIN",
        "type": "power_in",
        "description": "Input supply voltage. Absolute maximum 18V; recommended operating input up to 12V. A 10 uF input capacitor is recommended."
      }
    ],
    "provenance": {
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      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/33adf36a71e298ca40968a589cb6db3a.pdf",
        "pages": 13,
        "sha256": "5ec219092aa45bd9",
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
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        "described": 3,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
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      "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": "ams1117-adj.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-adj-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "fd546febd4e8d64277de14b667434bc384bd09f10df8ff8e19f2ddd262120b4d",
        "checked": "2026-10-16",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "rows": [
        {
          "name": "Input voltage",
          "symbol": "VIN",
          "kind": "recommended_operating",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 12,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Input voltage",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 18,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        }
      ]
    }
  },
  "sections": [
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  "discovery_triggers": [
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  ],
  "discovery_pitch": "AMS1117-ADJ (UMW) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
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    "ams1117-adj.step",
    "ams1117-adj-etched.step",
    "ams1117-adj.lbr",
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    "docs/ams1117-adj-datasheet.pdf",
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  ],
  "visibility": "public",
  "updated_at": "2026-09-24T16:22:50.499Z",
  "description": "UMW Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223. Datasheet-verified pinout, KiCad symbol/footprint/3D.",
  "org": "adom"
}