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Ray Set visibility: public 3d9090b 15h ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "scjt1117b-1-2",
  "title": "SCJT1117B-1.2",
  "brief": "Changjing Linear Voltage Regulators (LDO), SOT-223. 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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  "component": {
    "mpn": "SCJT1117B-1.2",
    "manufacturer": "Changjing",
    "package": "SOT-223",
    "pin_count": 3,
    "category": "Power Management",
    "subcategory": "Linear Voltage Regulators (LDO)",
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      "lbr": "scjt1117b-1-2.lbr"
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    "distributor_links": {
      "lcsc": "C1884530"
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    "distributor_check": {
      "checked_at": "2026-10-22T21:11:54Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
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        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
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    },
    "pins": [
      {
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        "name": "ADJ/GND",
        "type": "passive",
        "description": "Adjust pin on the adjustable version (set output voltage with R1/R2 divider) and ground on the fixed-voltage versions such as the 1.2V part."
      },
      {
        "number": "2",
        "name": "OUTPUT",
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      },
      {
        "number": "3",
        "name": "IN",
        "type": "power_in",
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      }
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        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
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        "at": "2026-10-22T21:11:41"
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        "pages": 7,
        "sha256": "fd37c845798118f3",
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        "described": 3,
        "cites_pages": true,
        "refuses_to_fabricate": true
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        "checked": "2026-10-22",
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  "metadata": {
    "specs": {
      "Manufacturer": "Changjing",
      "Package": "SOT-223",
      "Category": "Power Management",
      "Pins": "3"
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      "rows": [
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          "name": "Output Voltage",
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          "kind": "electrical",
          "unit": "V",
          "min": 1.176,
          "typ": 1.2,
          "max": 1.224,
          "conditions": "IOUT=10mA, VIN=3.2V, TJ=25℃",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Output Voltage (full load/line range)",
          "symbol": "VO",
          "kind": "electrical",
          "unit": "V",
          "min": 1.17,
          "typ": 1.2,
          "max": 1.23,
          "conditions": "10mA≤IOUT≤1A, 2.7V≤VIN≤12V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Line Regulation",
          "symbol": "LNR",
          "kind": "electrical",
          "unit": "%/V",
          "min": null,
          "typ": 0.03,
          "max": 0.2,
          "conditions": "IOUT=10mA, 1.5V≤VIN-VOUT≤8.8V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Load Regulation",
          "symbol": "LDR",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 2,
          "max": 8,
          "conditions": "VIN-VOUT=1.5V, 10mA≤IOUT≤1A",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Quiescent Current",
          "symbol": "Iq",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 10,
          "conditions": "VIN=VOUT+1.25V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Input Voltage (absolute maximum)",
          "symbol": "Vi",
          "kind": "absolute_maximum",
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          "min": null,
          "typ": null,
          "max": 20,
          "conditions": "",
          "source_page": 2,
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        },
        {
          "name": "Storage Temperature",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Lead Temperature",
          "symbol": "TL",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "Soldering, 10s",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "ESD Voltage (Machine Model)",
          "symbol": "VESD",
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          "min": null,
          "typ": null,
          "max": 400,
          "conditions": "",
          "source_page": 2,
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        },
        {
          "name": "Junction Temperature (maximum ratings)",
          "symbol": "Tj",
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          "unit": "℃",
          "min": -25,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 2,
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        {
          "name": "Input Voltage (recommended)",
          "symbol": "Vi",
          "kind": "recommended_operating",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 15,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Operating Junction Temperature",
          "symbol": "Tj",
          "kind": "recommended_operating",
          "unit": "℃",
          "min": -25,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Thermal Resistance Junction to Ambient",
          "symbol": "RθJA",
          "kind": "thermal",
          "unit": "℃/W",
          "min": null,
          "typ": null,
          "max": 10,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Dropout Voltage",
          "symbol": "VD",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 1.3,
          "max": null,
          "conditions": "ΔVREF=1%, IOUT=1.0A",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Ripple Rejection",
          "symbol": "RR",
          "kind": "electrical",
          "unit": "dB",
          "min": null,
          "typ": 60,
          "max": null,
          "conditions": "f=120Hz, COUT=22μF Tantalum, VIN-VOUT=3V, IOUT=1A",
          "source_page": 3,
          "source": "datasheet"
        }
      ]
    }
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  "discovery_pitch": "SCJT1117B-1.2 (Changjing) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
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