L78L05ACZTR

{
  "schema_version": 1,
  "type": "component",
  "slug": "l78l05acztr",
  "title": "L78L05ACZTR",
  "brief": "STMicroelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-92-2.54mm. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "pmic",
    "l78l05acztr"
  ],
  "component": {
    "mpn": "L78L05ACZTR",
    "manufacturer": "STMicroelectronics",
    "package": "TO-92-2.54mm",
    "pin_count": 3,
    "category": "PMIC",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "https://www.st.com/resource/en/datasheet/l78l05acztr.pdf",
    "parts": {
      "symbol": "l78l05acztr.kicad_sym",
      "footprint": "l78l05acztr.kicad_mod",
      "model_3d": "l78l05acztr-etched.glb",
      "model_3d_plain": "l78l05acztr.glb",
      "model_3d_step": "l78l05acztr-etched.step",
      "model_3d_step_plain": "l78l05acztr.step",
      "lbr": "l78l05acztr.lbr"
    },
    "distributor_links": {
      "digikey": "497-1184-2-ND",
      "lcsc": "C118270"
    },
    "pins": [
      {
        "number": "1",
        "name": "VOUT",
        "type": "power_out",
        "description": "Regulated +5 V output pin, capable of sourcing up to 100 mA. A 0.1 µF ceramic capacitor to GND is recommended for output stability and transient response."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Common ground reference for the input and output. On SOT-89 this pin is also the thermal tab, so PCB copper area on this pin dominates junction-to-ambient thermal performance (RthJA ≈ 55 °C/W with 6 cm² Cu)."
      },
      {
        "number": "3",
        "name": "VIN",
        "type": "power_in",
        "description": "Unregulated positive input voltage. Absolute maximum 30 V for the 5 V output variant; typical operating range gives >2 V of dropout headroom above VOUT. A 0.33 µF input capacitor to GND is recommended, especially if the regulator is located far from the bulk supply capacitor."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.st.com/resource/en/datasheet/l78l05acztr.pdf",
        "pages": 45,
        "sha256": "43922ae159face7e",
        "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": [
        0,
        0
      ],
      "corner": "bottom-right",
      "source": "pad-position",
      "derived_from": "TO-92_Inline@sha256:19731cf8b8c297aa",
      "mark": "synthesised"
    },
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        "file": "l78l05acztr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          4.83,
          3.745,
          9.8
        ],
        "zmin_mm": -2.5,
        "centre_offset_mm": 0.542,
        "footprint_binding": "identity",
        "sha256": "f0b61c32ecbf0067157adc5a3d4966ceadf5d6dafe93c51af35f76c41c71a54a",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "l78l05acztr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
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          3.745,
          9.8
        ],
        "zmin_mm": -2.5,
        "centre_offset_mm": 0.542,
        "footprint_binding": "identity",
        "sha256": "d87a04fa532310ed32b489cd1259a41183f6b84b0b0855561292d5236bf27d8b",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "STMicroelectronics",
      "Package": "TO-92-2.54mm",
      "Category": "PMIC",
      "Pins": "3"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "l78l05acztr"
  ],
  "discovery_pitch": "L78L05ACZTR (STMicroelectronics) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "l78l05acztr.kicad_sym",
    "l78l05acztr.kicad_mod",
    "l78l05acztr.glb",
    "l78l05acztr.step",
    "l78l05acztr-etched.step",
    "l78l05acztr.lbr",
    "docs/hero.png",
    "docs/l78l05acztr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "variants": [
    {
      "mpn": "L78L05ACZTR",
      "kind": "packaging"
    },
    {
      "mpn": "L78L05ACZTRZ",
      "kind": "packaging"
    },
    {
      "mpn": "L78L05ACZTRAZ",
      "kind": "packaging"
    },
    {
      "mpn": "L78L05ACZTRD",
      "kind": "packaging"
    },
    {
      "mpn": "L78L05ACZTRD13TR",
      "kind": "packaging"
    }
  ],
  "updated_at": "2026-09-24T23:34:35.230Z"
}