AS7812AT-E1

{
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  "type": "component",
  "slug": "as7812at-e1",
  "title": "AS7812AT-E1",
  "brief": "Diodes Incorporated Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-220. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "power management (pmic)",
    "as7812at-e1"
  ],
  "component": {
    "mpn": "AS7812AT-E1",
    "manufacturer": "Diodes Incorporated",
    "package": "TO-220",
    "pin_count": 3,
    "category": "Power Management (PMIC)",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8560094637638369280",
    "parts": {
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      "lbr": "as7812at-e1.lbr"
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    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "INPUT",
        "type": "power_in",
        "description": "Unregulated positive supply input. Recommended operating input voltage up to 32 V (absolute max 36 V). Bypass to GND with a 0.33 µF ceramic capacitor close to the pin for stability."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground / common reference for both input and output. On TO-220 the tab is electrically connected to this pin."
      },
      {
        "number": "3",
        "name": "OUTPUT",
        "type": "power_out",
        "description": "Regulated +12 V output (11.75-12.25 V typ at TJ=25°C, IOUT up to 1 A). Requires a 0.1 µF output capacitor to GND for transient response; internally current-limited and protected by thermal shutdown and safe-area protection."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
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        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8560094637638369280",
        "pages": 19,
        "sha256": "a3112666d50a186d",
        "source_tier": "lcsc"
      },
      "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"
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    "models_3d": [
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        "file": "as7812at-e1.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          10.25,
          4.455,
          28.525
        ],
        "zmin_mm": -9.75,
        "centre_offset_mm": 0.932,
        "footprint_binding": "identity",
        "sha256": "7cb065d935df5771f0ba6e48ddd180863a121af76483dad7f18e667a7b68204a",
        "checked": "2026-10-07",
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        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Diodes Incorporated",
      "Package": "TO-220",
      "Category": "Power Management (PMIC)",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "a3112666d50a186d",
      "rows": [
        {
          "name": "Output Voltage (TJ = +25°C)",
          "symbol": "VOUT",
          "kind": "electrical",
          "unit": "V",
          "min": 11.75,
          "typ": 12,
          "max": 12.25,
          "conditions": "TJ = +25°C",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Output Voltage (over line, load and temperature)",
          "symbol": "VOUT",
          "kind": "electrical",
          "unit": "V",
          "min": 11.5,
          "typ": null,
          "max": 12.5,
          "conditions": "IOUT = 5mA to 1A, VIN = 14.8V to 27V, PD ≤ 15W",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Line Regulation",
          "symbol": "VRLINE",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 25,
          "max": 120,
          "conditions": "VIN = 14.8V to 27V, IOUT = 500mA, TJ = +25°C",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Load Regulation",
          "symbol": "VRLOAD",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 40,
          "max": 120,
          "conditions": "VIN = 19V, IOUT = 5mA to 1A, TJ = +25°C",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Quiescent Current",
          "symbol": "IQ",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 3.4,
          "max": 6,
          "conditions": "VIN = 19V, IOUT = 0",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Quiescent Current Change (line)",
          "symbol": "ΔIQ",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 0.3,
          "max": 0.8,
          "conditions": "VIN = 14.8V to 30V, IOUT = 500mA, TJ = +25°C",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Quiescent Current Change (load)",
          "symbol": "ΔIQ",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 0.08,
          "max": 0.5,
          "conditions": "IOUT = 5mA to 1A, TJ = +25°C",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Input Voltage (recommended operating)",
          "symbol": "VIN",
          "kind": "recommended_operating",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 32,
          "conditions": "AS7812A",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Operating Junction Temperature Range",
          "symbol": "TJ",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Input Voltage (absolute maximum)",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 36,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Lead Temperature (soldering)",
          "symbol": "TLEAD",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "Soldering, 10 sec",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Operating Junction Temperature (absolute maximum)",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature Range",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Thermal Resistance Junction-to-Ambient (TO-220-3 / TO-220-3 (2))",
          "symbol": "θJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": null,
          "max": 60,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "ESD Human Body Model",
          "symbol": "ESD",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 6000,
          "conditions": "Human Body Model",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "ESD Machine Model",
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          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 500,
          "conditions": "Machine Model",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Thermal Resistance Junction-to-Case (TO-220-3 / TO-220-3 (2))",
          "symbol": "θJC",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 9,
          "max": null,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [
    {
      "mpn": "AS7812AT-E1",
      "kind": "packaging"
    },
    {
      "mpn": "AS7812AT-E1ADTR-G1",
      "kind": "packaging"
    }
  ],
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  "discovery_pitch": "AS7812AT-E1 (Diodes Incorporated) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
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  "updated_at": "2026-09-24T17:00:07.843Z"
}