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Ray Set visibility: public 022c29d 16d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "hg7544mk-1",
  "title": "HG7544MK-1",
  "brief": "HGSEMI Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-89. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
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    "hg7544mk-1",
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  "component": {
    "mpn": "HG7544MK-1",
    "manufacturer": "HGSEMI",
    "package": "SOT-89",
    "pin_count": 3,
    "category": "Power Management (PMIC)",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590230159472701440",
    "parts": {
      "symbol": "hg7544mk-1.kicad_sym",
      "footprint": "hg7544mk-1.kicad_mod",
      "model_3d": "hg7544mk-1-hero.glb",
      "model_3d_plain": "hg7544mk-1-etched.glb",
      "model_3d_step": "hg7544mk-1-etched.step",
      "model_3d_step_plain": "hg7544mk-1.step",
      "lbr": "hg7544mk-1.lbr"
    },
    "distributor_links": {
      "lcsc": "C2926291"
    },
    "distributor_check": {
      "checked_at": "2026-10-19T09:50:18Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "error"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin, the reference for the regulator. The datasheet gives no separate limit for this pin."
      },
      {
        "number": "2",
        "name": "VIN",
        "type": "power_in",
        "description": "Input pin; the absolute maximum supply voltage is -0.3V to +36V, and the datasheet specifies a maximum input voltage of 36V."
      },
      {
        "number": "3",
        "name": "VOUT",
        "type": "power_out",
        "description": "Regulated output pin; the 7544-1 nominal output is 4.4V (4.312V to 4.488V at 10mA), and the datasheet requires an output capacitor greater than 2.2uF to ground."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
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        "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 pinout drawing on page 2 is an image and is not in the extracted text. The pin numbers and names; The output capacitor requirement (greater than 2.2uF to ground) and the 4.4V nominal output are from"
        ],
        "pages_sent": 8,
        "cost_usd": 0.0401,
        "at": "2026-10-19T09:49:02"
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      "datasheet": {
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        "pages": 8,
        "sha256": "e17aedb4156facfc",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 3,
        "described": 3,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
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      "footprint": "viewers/footprint.html"
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    "models_3d": [
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        "file": "hg7544mk-1.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4,
          4.5,
          1.52
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0.05,
        "footprint_binding": "identity",
        "sha256": "844c0bb504d0c383535d9845c6376fe7a4053241a2ede8d8ef694df3fcfc37c8",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "hg7544mk-1-etched.step",
        "role": "eda",
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        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
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        "extents_mm": [
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        "footprint_binding": "identity",
        "sha256": "348ce6f4d9d18a4ca8a1c4b48a8869f4000af46167c7e158d47992e938000cf2",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "HGSEMI",
      "Package": "SOT-89",
      "Category": "Power Management (PMIC)",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "e17aedb4156facfce1dd3f2b28b25b7f0f89a403f44af215e20668b80d08193d",
      "rows": [
        {
          "name": "Output voltage",
          "symbol": "VOUT",
          "kind": "electrical",
          "unit": "V",
          "min": 4.312,
          "typ": 4.4,
          "max": 4.488,
          "conditions": "VIN=VOUT+2V, IOUT=10mA",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Output current",
          "symbol": "IOUT",
          "kind": "electrical",
          "unit": "mA",
          "min": 70,
          "typ": 100,
          "max": null,
          "conditions": "VIN=VOUT+2V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Load regulation",
          "symbol": "ΔVOUT",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 25,
          "max": 60,
          "conditions": "VIN=VOUT+2V, 1mA ≤ IOUT ≤ 50mA",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Dropout voltage",
          "symbol": "VDIF",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 2,
          "max": 4,
          "conditions": "IOUT=1mA, △Vo=2%",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Quiescent current",
          "symbol": "ISS",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": 2,
          "max": 3,
          "conditions": "No load",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Input voltage regulation (line regulation)",
          "symbol": "",
          "kind": "electrical",
          "unit": "%/V",
          "min": null,
          "typ": null,
          "max": 0.2,
          "conditions": "Vo+1V≤VIN≤36V, IOUT=1mA",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Output voltage tolerance (accuracy)",
          "symbol": "",
          "kind": "tolerance",
          "unit": "%",
          "min": -2,
          "typ": null,
          "max": 2,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Input voltage",
          "symbol": "VIN",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 36,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Temperature coefficient",
          "symbol": "",
          "kind": "temperature_coefficient",
          "unit": "ppm/℃",
          "min": null,
          "typ": 100,
          "max": null,
          "conditions": "IOUT=10mA, -40℃<Ta<85℃",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Power supply voltage (absolute maximum)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 36,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Operating ambient temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature range",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -45,
          "typ": null,
          "max": 140,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Thermal resistance, junction to ambient (SOT89)",
          "symbol": "θJA",
          "kind": "thermal",
          "unit": "℃/W",
          "min": null,
          "typ": null,
          "max": 200,
          "conditions": "No ambient airflow, no heatsink (assumed)",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Power dissipation (SOT89)",
          "symbol": "PD",
          "kind": "thermal",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 0.5,
          "conditions": "Ta=25℃",
          "source_page": 2,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
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  "discovery_triggers": [
    "hg7544mk-1"
  ],
  "discovery_pitch": "HG7544MK-1 (HGSEMI) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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    "hg7544mk-1-etched.glb"
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  "visibility": {
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}