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Ray Set visibility: public 0ee0d47 7h ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "ht317atz",
  "title": "HT317ATZ",
  "brief": "HTCSEMI Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-220. 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)",
    "ht317atz",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "HT317ATZ",
    "manufacturer": "HTCSEMI",
    "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/8588945420415983617",
    "parts": {
      "symbol": "ht317atz.kicad_sym",
      "footprint": "ht317atz.kicad_mod",
      "model_3d": "ht317atz-hero.glb",
      "model_3d_plain": "ht317atz-etched.glb",
      "model_3d_step": "ht317atz-etched.step",
      "model_3d_step_plain": "ht317atz.step",
      "lbr": "ht317atz.lbr"
    },
    "distributor_links": {
      "lcsc": "C2834472"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T13:32:27Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "ADJ/GND",
        "type": "passive",
        "description": "Adjustment pin; connects to the R1/R2 divider that sets the output voltage (Vout = 1.25 V(1+R2/R1) + IADJ*R2), with IADJ typically 50 µA and max 100 µA."
      },
      {
        "number": "2",
        "name": "Output",
        "type": "power_out",
        "description": "Regulated output, adjustable from 1.2 V to 37 V at more than 1.5 A; the heatsink tab is connected to this pin."
      },
      {
        "number": "3",
        "name": "Input",
        "type": "power_in",
        "description": "Unregulated input; the input-output voltage differential must not exceed 40 V."
      }
    ],
    "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+vision",
        "consensus_model": "claude-opus-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The MPN suffix 'TZ' does not match the ordering table, which lists HT317AT for TO-220. I assumed HT3; The datasheet labels pin 1 'ADJ/GND'. The ADJ pin carries no ground current, so I typed it passive a",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 6,
        "cost_usd": 0.1998,
        "at": "2026-10-18T13:32:14"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588945420415983617",
        "pages": 6,
        "sha256": "cb20a4cdbb6ac2d3",
        "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": "ht317atz.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": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ht317atz-etched.step",
        "role": "eda",
        "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": "ce733fd237d12a105183b78a77eb3211f06772284b6f376a0e1b984ee9ff3713",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "HTCSEMI",
      "Package": "TO-220",
      "Category": "Power Management (PMIC)",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "cb20a4cdbb6ac2d32a01f7262ce1b48d4682bb61780ffde6b0aca7fcf6b3d417",
      "rows": [
        {
          "name": "Input-Output Voltage Differential",
          "symbol": "Vi - Vo",
          "kind": "absolute_maximum",
          "unit": "Vdc",
          "min": null,
          "typ": null,
          "max": 40,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Operating Junction Temperature Range",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "C",
          "min": -40,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Storage Junction Temperature Range",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Line Regulation (TA=+25C)",
          "symbol": "Regline",
          "kind": "electrical",
          "unit": "%/V",
          "min": null,
          "typ": 0.01,
          "max": 0.04,
          "conditions": "3.0 V ≤ Vi - Vo ≤ 40 V, TA=+25C",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Load Regulation (TJ=+25C)",
          "symbol": "Regload",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 5,
          "max": 25,
          "conditions": "10mA ≤ Io ≤ Imax, Vin 5V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Load Regulation (TJ=+25C)",
          "symbol": "Regload",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": 0.1,
          "max": 0.5,
          "conditions": "10mA ≤ Io ≤ Imax, Vin5 V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Thermal Regulation (TA=+25C)",
          "symbol": "",
          "kind": "thermal",
          "unit": "%/W",
          "min": null,
          "typ": 0.03,
          "max": 0.07,
          "conditions": "TA=+25C, 20 ms pulse",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Adjustment Pin Current",
          "symbol": "IAdj",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 50,
          "max": 100,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Adjustment Pin Current Change",
          "symbol": "IAdj",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 0.2,
          "max": 5,
          "conditions": "2.5 V ≤ Vi - Vo ≤ 40 V, 10mA ≤ IL ≤ Imax, PD ≤ Pmax",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Reference Voltage (Note 4)",
          "symbol": "Vref",
          "kind": "electrical",
          "unit": "V",
          "min": 1.2,
          "typ": 1.25,
          "max": 1.3,
          "conditions": "3.0 V ≤ Vi - Vo ≤ 40 V, 10mA ≤ IL ≤ Imax, PD ≤ Pmax",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Line Regulation (Note 3)",
          "symbol": "Regline",
          "kind": "electrical",
          "unit": "%/V",
          "min": null,
          "typ": 0.02,
          "max": 0.07,
          "conditions": "3.0 V ≤ Vi - Vo ≤ 40 V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Load Regulation (Note 3)",
          "symbol": "Regload",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 20,
          "max": 70,
          "conditions": "10mA ≤ Io ≤ Imax, Vin 5V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Load Regulation (Note 3)",
          "symbol": "Regload",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": 0.3,
          "max": 1.5,
          "conditions": "10mA ≤ Io ≤ Imax, Vin5 V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Minimum Load Current to Maintain Regulation",
          "symbol": "ILmin",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 3.5,
          "max": 10,
          "conditions": "Vi - Vo = 40 V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Maximum Output Current",
          "symbol": "Imax",
          "kind": "electrical",
          "unit": "A",
          "min": 1.5,
          "typ": 2.2,
          "max": null,
          "conditions": "Vi - Vo ≤ 15 V, P ≤ 20 W",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Maximum Output Current",
          "symbol": "Imax",
          "kind": "electrical",
          "unit": "A",
          "min": 0.15,
          "typ": 0.4,
          "max": null,
          "conditions": "Vi - Vo = 40 V, P ≤ 20 W, TA=+25C",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Ripple Rejection (with Cadj)",
          "symbol": "RR",
          "kind": "electrical",
          "unit": "dB",
          "min": 65,
          "typ": 80,
          "max": null,
          "conditions": "Cadj = 10 µF, Vo = 10 V, f = 120 Hz (Note 5)",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Long-Term Stability",
          "symbol": "S",
          "kind": "electrical",
          "unit": "%/1.0 k Hrs.",
          "min": null,
          "typ": 0.3,
          "max": 1,
          "conditions": "Tj = Thigh (Note 6), TA=+25C for endpoint measurements",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Temperature Stability",
          "symbol": "Ts",
          "kind": "electrical",
          "unit": "",
          "min": null,
          "typ": 0.7,
          "max": null,
          "conditions": "Tlow ≤ Tj ≤ Thigh",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Ripple Rejection (without Cadj)",
          "symbol": "RR",
          "kind": "electrical",
          "unit": "dB",
          "min": null,
          "typ": 66,
          "max": null,
          "conditions": "Without Cadj, Vo = 10 V, f = 120 Hz (Note 5)",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "RMS Noise, % of Vo",
          "symbol": "N",
          "kind": "electrical",
          "unit": "% of Vo",
          "min": null,
          "typ": 0.003,
          "max": null,
          "conditions": "TA=+25C, 10 Hz ≤ f ≤ 10 kHz",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Thermal Resistance Junction to Case",
          "symbol": "RJC",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 5,
          "max": null,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "ht317atz"
  ],
  "discovery_pitch": "HT317ATZ (HTCSEMI) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ht317atz.kicad_sym",
    "ht317atz.kicad_mod",
    "ht317atz.glb",
    "ht317atz.step",
    "ht317atz.lbr",
    "docs/hero.png",
    "docs/ht317atz-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "ht317atz-hero.glb",
    "ht317atz-hero.overlay.json",
    "ht317atz-etched.glb"
  ],
  "visibility": {
    "public": true
  }
}