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Ray Set visibility: public 45df122 5h ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "ht7550a-1q",
  "title": "HT7550A-1Q",
  "brief": "QNH Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-92. 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)",
    "ht7550a-1q",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "HT7550A-1Q",
    "manufacturer": "QNH",
    "package": "TO-92",
    "pin_count": 3,
    "category": "Power Management (PMIC)",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/7d6d55630ac1d422d7bb6c8caa71e596.pdf",
    "parts": {
      "symbol": "ht7550a-1q.kicad_sym",
      "footprint": "ht7550a-1q.kicad_mod",
      "model_3d": "ht7550a-1q-hero.glb",
      "model_3d_plain": "ht7550a-1q-etched.glb",
      "model_3d_step": "ht7550a-1q-etched.step",
      "model_3d_step_plain": "ht7550a-1q.step",
      "lbr": "ht7550a-1q.lbr"
    },
    "distributor_links": {
      "lcsc": "C47020955"
    },
    "distributor_check": {
      "checked_at": "2026-10-22T22:09:07Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference; the output needs a capacitor of more than 2.2µF from VOUT to ground."
      },
      {
        "number": "2",
        "name": "VIN",
        "type": "power_in",
        "description": "Regulator input, rated to a maximum of 24V (absolute maximum -0.3 to +24V); place the input capacitor close to this pin."
      },
      {
        "number": "3",
        "name": "VOUT",
        "type": "power_out",
        "description": "Regulated 5.0V output (±2%) for the HT7550, with 100mA minimum output current at VIN=VOUT+2.0V; place the output capacitor close to this pin."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The datasheet does not explain the 'Q' suffix in HT7550A-1Q. The pinout is taken from the A-1 (TO92); The datasheet text does not state the TO92 pin order explicitly. The pin order 1=GND, 2=VIN, 3=VOUT "
        ],
        "pages_sent": 13,
        "cost_usd": 0.0697,
        "at": "2026-10-22T22:08:51"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/7d6d55630ac1d422d7bb6c8caa71e596.pdf",
        "pages": 13,
        "sha256": "78e25abc675b4c05",
        "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": "ht7550a-1q.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": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ht7550a-1q-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
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        "centre_offset_mm": 0.542,
        "footprint_binding": "identity",
        "sha256": "3a14bf9f4702985cd4f453334a20b2ef58cf92a29510b9109567e9fba7faf78f",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "QNH",
      "Package": "TO-92",
      "Category": "Power Management (PMIC)",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "78e25abc675b4c05915857c48db8209c488ec29e14e8409ec7a363fb1a5a153e",
      "rows": [
        {
          "name": "Output voltage",
          "symbol": "VOUT",
          "kind": "electrical",
          "unit": "V",
          "min": 4.9,
          "typ": 5,
          "max": 5.1,
          "conditions": "VIN=VOUT+2.0V, IOUT=10mA",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Output current",
          "symbol": "IOUT",
          "kind": "electrical",
          "unit": "mA",
          "min": 100,
          "typ": 150,
          "max": null,
          "conditions": "VIN=VOUT+2.0V",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Load regulation",
          "symbol": "ΔVOUT",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 5,
          "max": 60,
          "conditions": "VIN=VOUT+2.0V, 1mA≤IOUT≤70mA",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Dropout voltage",
          "symbol": "VDIF",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 25,
          "max": 55,
          "conditions": "IOUT=1mA, ΔVOUT=2%",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Quiescent current",
          "symbol": "ISS",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 1.5,
          "max": 3,
          "conditions": "No load",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Line regulation",
          "symbol": "ΔVOUT/(VOUT*ΔVIN)",
          "kind": "electrical",
          "unit": "%/V",
          "min": null,
          "typ": null,
          "max": 0.2,
          "conditions": "VOUT+1.0V≤VIN≤24V, IOUT=1mA",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Input voltage",
          "symbol": "VIN",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 24,
          "conditions": "",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Output voltage temperature coefficient",
          "symbol": "ΔVOUT/(ΔTA*VOUT)",
          "kind": "temperature_coefficient",
          "unit": "ppm/°C",
          "min": null,
          "typ": 100,
          "max": null,
          "conditions": "VIN=VOUT+2.0V, IOUT=10mA, -40℃≤TA≤85℃",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Input voltage (absolute maximum)",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 24,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -50,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Operating temperature",
          "symbol": "TA",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Thermal resistance",
          "symbol": "θJA",
          "kind": "thermal",
          "unit": "℃/W",
          "min": null,
          "typ": null,
          "max": 200,
          "conditions": "TO92",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Power dissipation",
          "symbol": "PD",
          "kind": "absolute_maximum",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 500,
          "conditions": "TO92",
          "source_page": 4,
          "source": "datasheet"
        }
      ]
    }
  },
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  "sections": [
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  "discovery_triggers": [
    "ht7550a-1q"
  ],
  "discovery_pitch": "HT7550A-1Q (QNH) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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}