JY1117E18AX

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  "type": "component",
  "slug": "jy1117e18ax",
  "title": "JY1117E18AX",
  "brief": "Shenzhen JingYang Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT223-3L. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
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  "component": {
    "mpn": "JY1117E18AX",
    "manufacturer": "Shenzhen JingYang",
    "package": "SOT223-3L",
    "pin_count": 3,
    "category": "Power Management (PMIC)",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603178682244743168",
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    "distributor_links": {
      "lcsc": "C6423749"
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    "distributor_check": {
      "checked_at": "2026-10-17T13:43:16Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
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      "mouser": {
        "pn": null,
        "status": "quota"
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    },
    "pins": [
      {
        "number": "1",
        "name": "Adj (GND)",
        "type": "power_in",
        "description": "Resistor divider from this pin to VOUT and ground sets the output voltage in the adjustable version, and in the fixed-mode version (JY1117-18 is fixed 1.8V) this pin is ground only."
      },
      {
        "number": "2",
        "name": "VOUT",
        "type": "power_out",
        "description": "Regulator output; a minimum 0.2uF X7R or X5R ceramic output capacitor is strongly recommended to prevent oscillation, and a minimum 3.3uF electrolytic capacitor (10mΩ ≤ ESR ≤ 1Ω, up to 100uF) must be connected from this pin to ground for stability."
      },
      {
        "number": "3",
        "name": "VIN",
        "type": "power_in",
        "description": "Input pin, typically with a large storage capacitor to ground; it must always be at least 1.5V higher than VOUT for proper regulation, with an operating input range of 2.7V to 12V."
      }
    ],
    "provenance": {
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        "primary_model": "claude-haiku-5-5",
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        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The SOT223 tab is internally VOUT per the pin assignment ('Tab is Vout'), but it is not a numbered p; Pin 1 is labeled 'Adj (GND)' and is typed power_in per the GND convention; it is an adjust/feedback ; The datasheet covers SOT223-3L (order code E) and the MPN suffix 18 selects 1.8V fixed output; the p"
        ],
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        "cost_usd": 0.0362,
        "at": "2026-10-17T13:41:20"
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        "pages": 13,
        "sha256": "17cca7e7aa6ec0b8",
        "source_tier": "lcsc"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 3,
        "described": 3,
        "cites_pages": true,
        "refuses_to_fabricate": true
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        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "77ad6dbacc493cb619c728f26d2ddcf461eb0feb6b977b47d01d51e67016f654",
        "checked": "2026-10-17",
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        "sha256": "1b58fe652d7d507157a5ed830fdeca127c9d50203b84e1cd7664f3ff936d1d1d",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "Shenzhen JingYang",
      "Package": "SOT223-3L",
      "Category": "Power Management (PMIC)",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "17cca7e7aa6ec0b82a8c85fc96292eb160eb25ef2db41127330e015695c34b60",
      "rows": [
        {
          "name": "Operation Input Voltage",
          "symbol": "VIN",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2.7,
          "typ": null,
          "max": 12,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Output Voltage (JY1117-1.8)",
          "symbol": "VOUT",
          "kind": "electrical",
          "unit": "V",
          "min": 1.764,
          "typ": 1.8,
          "max": 1.836,
          "conditions": "IOUT = 10mA",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Line Regulation",
          "symbol": "",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": 0.2,
          "max": 0.5,
          "conditions": "IOUT=10mA, VOUT+1.5V<VIN<12V, TJ=25°C (Note 1,2)",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Load Regulation (JY1117-1.8)",
          "symbol": "",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 15,
          "max": 18,
          "conditions": "VIN=3.3V, 0mA≤IOUT≤1A, TJ=25°C (Note 1,2)",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Dropout Voltage (VIN-VOUT)",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 1.2,
          "max": 1.4,
          "conditions": "IOUT = 1A, VOUT=1%VOUT",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Current Limit",
          "symbol": "",
          "kind": "electrical",
          "unit": "A",
          "min": 1,
          "typ": null,
          "max": 1.8,
          "conditions": "(VIN-VOUT) = 1.5V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Minimum Load Current",
          "symbol": "",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 5,
          "max": 7,
          "conditions": "0°C≤Tj≤125°C",
          "source_page": 5,
          "source": "datasheet"
        }
      ]
    }
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  "discovery_pitch": "JY1117E18AX (Shenzhen JingYang) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
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    "email": "[email protected]"
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