LM78L05

{
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  "type": "component",
  "slug": "lm78l05",
  "title": "LM78L05",
  "brief": "KEXIN Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-89-3. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.1",
  "license": "CC-BY-SA-4.0",
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  "component": {
    "mpn": "LM78L05",
    "manufacturer": "KEXIN",
    "package": "SOT-89-3",
    "pin_count": 3,
    "category": "PMIC",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/84a0cb126f625148eed85c6f95fa2d80.pdf",
    "parts": {
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      "lbr": "lm78l05.lbr"
    },
    "distributor_links": {
      "lcsc": "C489392"
    },
    "pins": [
      {
        "number": "1",
        "name": "OUT",
        "type": "power_out",
        "description": "Regulated +5 V output. Typical Vo = 5.0 V (4.75 V to 5.25 V over Tj = 0 to 125 degC, Io = 1 mA to 70 mA). Maximum output current 100 mA. A 0.1 uF bypass capacitor to GND is recommended close to the pin for transient response."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Common ground reference for the regulator. Also serves as the thermal tab on the SOT-89 package; PCB copper area on this pad aids power dissipation (Pd = 0.5 W at Ta = 25 degC)."
      },
      {
        "number": "3",
        "name": "IN",
        "type": "power_in",
        "description": "Unregulated DC input, 7 V to 20 V for spec compliance, 30 V absolute maximum. A 0.33 uF bypass capacitor to GND should be placed close to the pin for stability."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/84a0cb126f625148eed85c6f95fa2d80.pdf",
        "pages": 2,
        "sha256": "48de17a914051870",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 3,
        "described": 3,
        "cites_pages": true,
        "refuses_to_fabricate": true
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    "pin1": {
      "pad": "1",
      "at": [
        -1.95,
        -1.5
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "SOT-89-3@sha256:0b8db9f4a8f2547a",
      "mark": "drawn"
    },
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        "role": "plain",
        "up": "Z",
        "units": "mm",
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        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": 0,
        "centre_offset_mm": 0.05,
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        "checked": "2026-10-07",
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        "zmin_mm": 0,
        "centre_offset_mm": 0.05,
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        "sha256": "9cc7ac0a8ccd68728a28279a7027b77f6b18ab23385c620ad882a5909f6caa24",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "KEXIN",
      "Package": "SOT-89-3",
      "Category": "PMIC",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "rows": [
        {
          "name": "Input voltage",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 30,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Output current",
          "symbol": "IOUT",
          "kind": "recommended_operating",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 0.1,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        }
      ]
    }
  },
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  "discovery_triggers": [
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  "discovery_pitch": "LM78L05 (KEXIN) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
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    "lm78l05-etched.step",
    "lm78l05.lbr",
    "docs/hero.png",
    "docs/lm78l05-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "pads.json",
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  "visibility": "public",
  "updated_at": "2026-09-28T17:09:48.646Z",
  "description": "KEXIN Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-89-3. Datasheet-verified pinout, KiCad symbol/footprint/3D.",
  "org": "adom"
}