wl2803e28-5

{
  "slug": "wl2803e28-5",
  "version": "0.1.0",
  "type": "component",
  "description": "WILLSEMI Will Semicon Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-5L. Datasheet-verified pinout, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "pmic",
    "wl2803e28-5"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "wl2803e28-5.kicad_sym",
    "wl2803e28-5.kicad_mod",
    "wl2803e28-5.glb",
    "wl2803e28-5.step",
    "wl2803e28-5.lbr",
    "docs/hero.png",
    "docs/wl2803e28-5-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "wl2803e28-5-etched.step"
  ],
  "visibility": {
    "public": true
  },
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "component": {
    "mpn": "WL2803E28-5",
    "manufacturer": "WILLSEMI Will Semicon",
    "package": "SOT-23-5L",
    "pin_count": 5,
    "category": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "parts": {
      "symbol": "wl2803e28-5.kicad_sym",
      "footprint": "wl2803e28-5.kicad_mod",
      "model_3d": "wl2803e28-5-etched.glb",
      "model_3d_plain": "wl2803e28-5.glb",
      "model_3d_step": "wl2803e28-5-etched.step",
      "model_3d_step_plain": "wl2803e28-5.step",
      "lbr": "wl2803e28-5.lbr"
    },
    "pins": [
      {
        "number": "1",
        "name": "VIN",
        "type": "power_in",
        "description": "Input supply pin, 2.5 V to 5.5 V operating range (absolute max -0.3 V to 6.5 V). Bypass to GND with a 4.7 µF ceramic capacitor placed close to the pin."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground reference for both the input supply and output regulation feedback path."
      },
      {
        "number": "3",
        "name": "EN",
        "type": "input",
        "description": "Active-high enable input. VENH ≥ 1.2 V turns the regulator on; VENL ≤ 0.4 V forces shutdown (ISHDN ≈ 0.1 µA typ). Do not leave floating."
      },
      {
        "number": "4",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection. Leave floating or tie to GND for mechanical strain relief."
      },
      {
        "number": "5",
        "name": "VOUT",
        "type": "power_out",
        "description": "Regulated 2.8 V output (WL2803E28-5), up to 500 mA continuous with 130 mV typical dropout. Requires a 4.7 µF ceramic output capacitor (≥10 µF recommended when VOUT < 2 V)."
      }
    ],
    "provenance": {
      "rebuilt": "component block rebuilt 2026-10-05 from this page's own README pinout table and .kicad_sym (pins cross-checked), no re-extraction"
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "distributor_links": {
      "digikey": false,
      "mouser": false
    },
    "distributor_check": {
      "checked_at": "2026-10-05T19:25:58Z",
      "source": "Component Ocean /api/assign-pns + lcsc_map",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "models_3d": [
      {
        "file": "wl2803e28-5.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.8,
          2.9,
          1.55
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "720a6eab0024069bbee68e7cb4c3ff1149468a34611225cdc852662c5d0ec2b7",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "wl2803e28-5-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.8,
          2.9,
          1.55
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "6fe34a4343ac5b554dc9c893648b3fa131ccac52f77f22a2ef6c53803e366265",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}