main
Ray Set visibility: public 29f4927 7d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "lp3966s-adj",
  "title": "LP3966S-ADJ",
  "brief": "HGSEMI Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-263-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "power management (pmic)",
    "lp3966s-adj",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "LP3966S-ADJ",
    "manufacturer": "HGSEMI",
    "package": "TO-263-5",
    "pin_count": 6,
    "category": "Power Management (PMIC)",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603393527695368192",
    "parts": {
      "symbol": "lp3966s-adj.kicad_sym",
      "footprint": "lp3966s-adj.kicad_mod",
      "model_3d": "lp3966s-adj-hero.glb",
      "model_3d_plain": "lp3966s-adj-etched.glb",
      "model_3d_step": "lp3966s-adj-etched.step",
      "model_3d_step_plain": "lp3966s-adj.step",
      "lbr": "lp3966s-adj.lbr"
    },
    "distributor_links": {
      "lcsc": "C3007946"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T10:42:46Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "EN",
        "type": "input",
        "description": "Active-high CMOS/TTL-compatible enable input that must not be left floating, and it may be tied directly to IN for continuous operation."
      },
      {
        "number": "2",
        "name": "IN",
        "type": "power_in",
        "description": "Unregulated input supply, rated at +2.8V to +8V maximum (operating input voltage listed as 3.3V to 8V)."
      },
      {
        "number": "3",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin, with the TAB also connected internally to the IC ground on both packages."
      },
      {
        "number": "4",
        "name": "OUT",
        "type": "power_out",
        "description": "Regulator output voltage; the output structure blocks reverse current flow when external voltages exceed the set output."
      },
      {
        "number": "5",
        "name": "ADJ",
        "type": "input",
        "description": "Feedback input receiving the 1.24V reference from an external resistor divider that sets the output voltage between 1.24V and 15V."
      },
      {
        "number": "6",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The TAB is not a numbered pin; it is listed in the datasheet pin table as '3, TAB' both mapping to G; The datasheet's pin configuration figure is shared across TO-263-5, TO-220-5 and TO-252-4 and does n; The ADJ output formula in the extracted text is garbled (VOUT=1.242×(R1 R2 +1)); the division sign w",
          "exposed pad 6 added from the footprint",
          "dropped thermal pad ['EP'] absent from footprint"
        ],
        "pages_sent": 18,
        "cost_usd": 0.042,
        "at": "2026-10-18T10:41:04"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603393527695368192",
        "pages": 18,
        "sha256": "847ddc207f2a2ca7",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 6,
        "described": 6,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "lp3966s-adj.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          15,
          10,
          4.42
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "94c2a3dc1aaad85b6b5193f97d9a7c61b4e28bac25952a1e629557bcf747e246",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lp3966s-adj-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "be7444af6bc20cff90eb0f5685d66637976c55af5baaed185e6276877a5fdd36",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "HGSEMI",
      "Package": "TO-263-5",
      "Category": "Power Management (PMIC)",
      "Pins": "6"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "847ddc207f2a2ca7e44dd6fcb5083b55bcb6666672fb75535d54ad259c02ce5e",
      "rows": [
        {
          "name": "Input Supply Voltage (absolute maximum)",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": 3,
          "typ": null,
          "max": 8,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Enable Input Voltage (absolute maximum)",
          "symbol": "VEN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Lead Temperature (soldering 10 sec)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 245,
          "conditions": "soldering 10 sec",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature Range",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Operating Junction Temperature",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
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          "source": "datasheet"
        },
        {
          "name": "Operating Input Voltage",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 3.3,
          "typ": null,
          "max": 8,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Package Thermal Resistance TO-263 (junction-to-case)",
          "symbol": "θJC",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": null,
          "max": 3,
          "conditions": "TO-263",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Case-to-sink thermal resistance (thermal design range)",
          "symbol": "θCS",
          "kind": "thermal",
          "unit": "°C/W",
          "min": 0,
          "typ": null,
          "max": 2,
          "conditions": "thermal design note",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Output Voltage Accuracy",
          "symbol": "",
          "kind": "tolerance",
          "unit": "%",
          "min": -2,
          "typ": null,
          "max": 2,
          "conditions": "100mA ≤ IOUT ≤ 3A, (VOUT + 1V) ≤ VIN ≤ 8V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Dropout Voltage",
          "symbol": "",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 80,
          "max": 200,
          "conditions": "ΔVOUT = -1%; IOUT = 100mA",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Dropout Voltage",
          "symbol": "",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 450,
          "max": 800,
          "conditions": "ΔVOUT = -1%; IOUT = 3A",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Ground Current",
          "symbol": "",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 5,
          "max": 20,
          "conditions": "IOUT = 750mA, VIN = VOUT + 1V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Ground Current",
          "symbol": "",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 60,
          "max": 150,
          "conditions": "IOUT = 3A",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Current Limit",
          "symbol": "",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": 3,
          "max": 4,
          "conditions": "VOUT = 0V (note 7, pulse testing)",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Line Regulation",
          "symbol": "",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": 0.1,
          "max": 0.5,
          "conditions": "IOUT = 100mA, (VOUT + 1V) ≤ VIN ≤ 8V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Load Regulation",
          "symbol": "",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": 0.2,
          "max": 1,
          "conditions": "VIN = VOUT + 1V, 100mA ≤ IOUT ≤ 3A",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Reference Voltage",
          "symbol": "VREF",
          "kind": "electrical",
          "unit": "V",
          "min": 1.215,
          "typ": null,
          "max": 1.267,
          "conditions": "VREF ≤ VOUT ≤ VIN -1, 3V≤ VOUT ≤8V, 10mA ≤ IL ≤ IFL, TJ ≤ TJmax (note 8)",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Adjust Pin Bias Current",
          "symbol": "",
          "kind": "electrical",
          "unit": "nA",
          "min": null,
          "typ": 40,
          "max": 120,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Enable Input Logic Voltage Low (OFF)",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.8,
          "conditions": "Low (OFF)",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Enable Input Logic Voltage High (ON)",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": 2.4,
          "typ": null,
          "max": null,
          "conditions": "High (ON)",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Enable Pin Input Current",
          "symbol": "",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 15,
          "max": 30,
          "conditions": "VEN = 8V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Enable Pin Input Current",
          "symbol": "",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 75,
          "conditions": "VEN = 8V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Enable Pin Input Current",
          "symbol": "",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 2,
          "max": 4,
          "conditions": "VEN = 0.8V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Regulator Output Current in Shutdown",
          "symbol": "",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 10,
          "max": 20,
          "conditions": "VEN ≤ 0.8V, VIN ≤ 8V and VOUT = 0V (note 10)",
          "source_page": 5,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
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    "readme",
    "breadcrumbs",
    "info"
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  "discovery_triggers": [
    "lp3966s-adj"
  ],
  "discovery_pitch": "LP3966S-ADJ (HGSEMI) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
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    "path": "docs/hero.png"
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    "lp3966s-adj.step",
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    "lp3966s-adj-hero.overlay.json",
    "lp3966s-adj-etched.glb"
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  "visibility": {
    "public": true
  }
}