main
Ray Set visibility: public 3dde989 1d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "ht2785ah50rz",
  "title": "HT2785AH50RZ",
  "brief": "HTCSEMI 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": [
    "component",
    "power management (pmic)",
    "ht2785ah50rz",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "HT2785AH50RZ",
    "manufacturer": "HTCSEMI",
    "package": "SOT-89",
    "pin_count": 3,
    "category": "Power Management (PMIC)",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/084fa2cf1e3da51bf353ba98fe331fb4.pdf",
    "parts": {
      "symbol": "ht2785ah50rz.kicad_sym",
      "footprint": "ht2785ah50rz.kicad_mod",
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      "model_3d_plain": "ht2785ah50rz-etched.glb",
      "model_3d_step": "ht2785ah50rz-etched.step",
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      "lbr": "ht2785ah50rz.lbr"
    },
    "distributor_links": {
      "lcsc": "C28646418"
    },
    "distributor_check": {
      "checked_at": "2026-11-05T10:20:03Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VIN",
        "type": "power_in",
        "description": "Supply voltage input with a DC operating range of 25 V to 450 V (3.3 V option) and an absolute maximum of -0.3 V to 700 V; connect a 2.2 μF capacitor from VIN to GND."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground connection, which is also electrically the tab of the SOT-89 package."
      },
      {
        "number": "3",
        "name": "VOUT",
        "type": "power_out",
        "description": "Regulator output providing 3.3 V, 5 V, 12 V or 15 V at up to 10 mA; connect 22 μF or larger MLCC capacitor from VOUT to GND, with absolute maximum rating of -0.3 V to 18 V."
      }
    ],
    "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: Table 1 lists pin 2 as 'GND' and the tab as 'Tab' together on one line ('2, Tab GND'). The tab is th; The requested MPN HT2785AH50RZ does not appear in the datasheet ordering table. The closest entry is; The datasheet pin-description text lost the micro symbol in extraction (shown as '2.2 F' and '22 F')"
        ],
        "pages_sent": 14,
        "cost_usd": 0.0591,
        "at": "2026-11-05T10:19:56"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/084fa2cf1e3da51bf353ba98fe331fb4.pdf",
        "pages": 14,
        "sha256": "94901f0a04ddd533",
        "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"
    },
    "models_3d": [
      {
        "file": "ht2785ah50rz.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": "2026-11-05",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ht2785ah50rz-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "sha256": "9ba04f492a8dc5902cfd3788f10db25c31484d212b8125fb4f9b824f40eaeb67",
        "checked": "2026-11-05",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ],
    "package_dims": {
      "package_code": "SOT-89",
      "source_page": 10,
      "D": {
        "nom_mm": 4.5,
        "range_mm": [
          4.4,
          4.6
        ]
      },
      "E1": {
        "nom_mm": 2.5,
        "range_mm": [
          2.4,
          2.6
        ]
      },
      "E": {
        "nom_mm": 4.15,
        "range_mm": [
          4.05,
          4.25
        ]
      },
      "e": {
        "nom_mm": 1.5,
        "range_mm": [
          null,
          null
        ]
      },
      "A": {
        "nom_mm": 1.5,
        "range_mm": [
          1.4,
          1.6
        ]
      },
      "source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
      "model_check": {
        "file": "ht2785ah50rz.step",
        "verdict": "PASS",
        "reasons": [
          "height and body within the datasheet's package drawing"
        ],
        "by": "factory/package_fit.py"
      }
    }
  },
  "metadata": {
    "specs": {
      "Manufacturer": "HTCSEMI",
      "Package": "SOT-89",
      "Category": "Power Management (PMIC)",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "94901f0a04ddd5333d87963a5554d8cf122872c488c6fc7a48e358b4111c5c8b",
      "rows": [
        {
          "name": "Operating Input Voltage DC",
          "symbol": "VIN",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 50,
          "typ": null,
          "max": 450,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Output Voltage Accuracy (TJ = 25°C)",
          "symbol": "VOUT",
          "kind": "electrical",
          "unit": "V",
          "min": 4.775,
          "typ": 5,
          "max": 5.225,
          "conditions": "TJ = 25°C, Iout = 100 A, 50 V ≤ Vin ≤ 450 V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Output Voltage Accuracy (−40°C ≤ TJ ≤ 85°C)",
          "symbol": "VOUT",
          "kind": "electrical",
          "unit": "V",
          "min": 4.75,
          "typ": 5,
          "max": 5.25,
          "conditions": "−40°C ≤ TJ ≤ 85°C, Iout = 100 A, 50 V ≤ Vin ≤ 450 V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Line Regulation",
          "symbol": "RegLINE",
          "kind": "electrical",
          "unit": "%",
          "min": -0.5,
          "typ": 0.2,
          "max": 0.5,
          "conditions": "50 V ≤ Vin ≤ 450 V, Iout = 100 A",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Load Regulation",
          "symbol": "RegLOAD",
          "kind": "electrical",
          "unit": "%",
          "min": -1,
          "typ": 0.62,
          "max": 1,
          "conditions": "100 A ≤ IOUT ≤ 10 mA, Vin = 55 V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Maximum Output Current",
          "symbol": "IOUT",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 10.5,
          "conditions": "55 V ≤ Vin ≤ 450 V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Quiescent Current",
          "symbol": "IQ",
          "kind": "electrical",
          "unit": "A",
          "min": 16,
          "typ": null,
          "max": 21,
          "conditions": "IOUT = 0, 50 V ≤ Vin ≤ 450 V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Ground Current",
          "symbol": "IGND",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 23,
          "conditions": "50 V ≤ Vin ≤ 450 V, 0 < IOUT ≤ 10 mA",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Power Supply Rejection Ratio",
          "symbol": "PSRR",
          "kind": "electrical",
          "unit": "dB",
          "min": 70,
          "typ": null,
          "max": null,
          "conditions": "Vin = 340 VDC +1 Vpp modulation, Iout = 100 A, f = 1 kHz",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Output Noise",
          "symbol": "VNOISE",
          "kind": "electrical",
          "unit": "Vrms",
          "min": null,
          "typ": null,
          "max": 300,
          "conditions": "f = 100 Hz to 100 kHz, Vin = 340 VDC, Iout = 100 A",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Input Voltage (absolute maximum)",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 700,
          "conditions": "Note 1",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Output Voltage (absolute maximum)",
          "symbol": "VOUT",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 18,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Maximum Junction Temperature",
          "symbol": "TJ(MAX)",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "ESD Capability, Human Body Model",
          "symbol": "ESDHBM",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 2000,
          "conditions": "All pins except HV pin no.1 (Note 2)",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "ESD Capability, Machine Model",
          "symbol": "ESDMM",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 200,
          "conditions": "Note 2",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Thermal Shutdown Temperature",
          "symbol": "TSD",
          "kind": "electrical",
          "unit": "°C",
          "min": null,
          "typ": 145,
          "max": null,
          "conditions": "Temperature increasing from TJ = +25°C",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Thermal Shutdown Hysteresis",
          "symbol": "TSDH",
          "kind": "electrical",
          "unit": "°C",
          "min": null,
          "typ": 10,
          "max": null,
          "conditions": "Temperature falling from TSD",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Thermal Resistance, Junction-to-Air",
          "symbol": "RJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 79,
          "max": null,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        }
      ]
    }
  },
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  "discovery_pitch": "HT2785AH50RZ (HTCSEMI) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
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