LDL1117S33R

{
  "schema_version": 1,
  "type": "component",
  "slug": "ldl1117s33r",
  "title": "LDL1117S33R",
  "brief": "STMicroelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223-4. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.1",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "pmic",
    "ldl1117s33r"
  ],
  "component": {
    "mpn": "LDL1117S33R",
    "manufacturer": "STMicroelectronics",
    "package": "SOT-223-4",
    "pin_count": 3,
    "category": "PMIC",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "https://www.st.com/resource/en/datasheet/ldl1117s33r.pdf",
    "parts": {
      "symbol": "ldl1117s33r.kicad_sym",
      "footprint": "ldl1117s33r.kicad_mod",
      "model_3d": "ldl1117s33r-hero.glb",
      "model_3d_plain": "ldl1117s33r.glb",
      "model_3d_step": "ldl1117s33r-etched.step",
      "model_3d_step_plain": "ldl1117s33r.step",
      "lbr": "ldl1117s33r.lbr"
    },
    "distributor_links": {
      "lcsc": "C435835"
    },
    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground return. Sets the reference for the internal bandgap and feedback divider; connect directly to the system ground plane close to the input/output bypass capacitors."
      },
      {
        "number": "2",
        "name": "VOUT",
        "type": "power_out",
        "description": "Regulated output voltage (3.3 V for LDL1117S33R). Delivers up to 1.2 A; requires a minimum 4.7 µF output capacitor for stability. The SOT-223 tab is internally connected to this pin and should be tied to the output copper for heatsinking."
      },
      {
        "number": "3",
        "name": "VIN",
        "type": "power_in",
        "description": "Unregulated input supply, 2.5 V to 18 V (20 V AMR). Should be bypassed with at least a 1 µF ceramic capacitor placed close to the pin."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.st.com/resource/en/datasheet/ldl1117s33r.pdf",
        "pages": 20,
        "sha256": "387b4375ad125c24",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 3,
        "described": 3,
        "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": "ldl1117s33r.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": "ldl1117s33r-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": "2d55b42650f3d48aa1be7650b4cf1b8c47ef96782e8a1e9ff092036ccdd708f3",
        "checked": "2026-10-16",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "STMicroelectronics",
      "Package": "SOT-223-4",
      "Category": "PMIC",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "rows": [
        {
          "name": "Input voltage",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 20,
          "conditions": "",
          "source_page": 8,
          "source": "datasheet"
        }
      ]
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "ldl1117s33r"
  ],
  "discovery_pitch": "LDL1117S33R (STMicroelectronics) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ldl1117s33r.kicad_sym",
    "ldl1117s33r.kicad_mod",
    "ldl1117s33r.glb",
    "ldl1117s33r.step",
    "ldl1117s33r-etched.step",
    "ldl1117s33r.lbr",
    "docs/hero.png",
    "docs/ldl1117s33r-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "pads.json",
    "ldl1117s33r-etched.glb",
    "ldl1117s33r-hero.glb",
    "ldl1117s33r-hero.overlay.json"
  ],
  "variants": [
    {
      "mpn": "LDL1117S33R",
      "kind": "packaging"
    }
  ],
  "updated_at": "2026-09-24T23:53:44.541Z",
  "description": "STMicroelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223-4. Datasheet-verified pinout, KiCad symbol/footprint/3D.",
  "visibility": "public",
  "org": "adom"
}