JY1117E33AX

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  "version": "0.2.1",
  "type": "component",
  "description": "Shenzhen JingYang Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223-4. Datasheet-verified pinout, KiCad symbol/footprint/3D.",
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    "pmic",
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  "metadata": {
    "specs": {
      "Manufacturer": "Shenzhen JingYang",
      "Package": "SOT-223-4",
      "Category": "PMIC",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "fe77cb471f1f490b",
      "rows": [
        {
          "name": "Operation Input Voltage",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": 2.7,
          "typ": null,
          "max": 12,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Reference Voltage",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": 1.225,
          "typ": 1.25,
          "max": 1.275,
          "conditions": "IOUT = 10mA, TJ=25°C, (VIN-OUT)=1.5V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Output Voltage (-3.3)",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": 3.235,
          "typ": 3.3,
          "max": 3.365,
          "conditions": "IOUT = 10mA, TJ = 25°C, 4.8V≤VIN≤12V",
          "source_page": 5,
          "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": 5,
          "source": "datasheet"
        },
        {
          "name": "Load Regulation (-3.3)",
          "symbol": "",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 26,
          "max": 33,
          "conditions": "VIN=5V, 10mA≤IOUT≤1A, TJ=25°C (Note 1,2)",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Dropout Voltage",
          "symbol": "VIN-VOUT",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 1.2,
          "max": 1.4,
          "conditions": "IOUT = 1A, ΔVOUT=1%VOUT",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Current Limit",
          "symbol": "",
          "kind": "electrical",
          "unit": "A",
          "min": 1,
          "typ": null,
          "max": null,
          "conditions": "(VIN-VOUT) = 1.5V",
          "source_page": 6,
          "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": 6,
          "source": "datasheet"
        },
        {
          "name": "Ripple Rejection",
          "symbol": "",
          "kind": "electrical",
          "unit": "dB",
          "min": 50,
          "typ": 60,
          "max": 70,
          "conditions": "F=120Hz, COUT=10μF, 0.2μF, (VIN-VOUT) = 1.5V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "DC Supply Voltage",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 15,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Operating Junction Temperature Range",
          "symbol": "Top",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Maximum Junction Temperature",
          "symbol": "TMJ",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature",
          "symbol": "TST",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Power Dissipation SOT-223 (with heat sink)",
          "symbol": "PD",
          "kind": "absolute_maximum",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 1300,
          "conditions": "Heat sink area 5mm*5mm; TA=25°C, TJ=125°C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Power Dissipation SOT-223 (no heat sink)",
          "symbol": "PD",
          "kind": "absolute_maximum",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 850,
          "conditions": "No heat sink; no air flow; TA=25°C, TJ=125°C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Thermal Resistance Junction-to-Ambient SOT-223 (with heat sink)",
          "symbol": "TJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 75,
          "max": null,
          "conditions": "Note 4: tab connected to 5mm*5mm multi-layer PCB copper area",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Thermal Resistance Junction-to-Ambient SOT-223 (no heat sink)",
          "symbol": "TJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 117,
          "max": null,
          "conditions": "No heat sink; no air flow",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Thermal Resistance Junction-to-Case SOT-223",
          "symbol": "TJC",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 15,
          "max": null,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        }
      ]
    }
  },
  "component": {
    "mpn": "JY1117E33AX",
    "manufacturer": "Shenzhen JingYang",
    "package": "SOT-223-4",
    "pin_count": 3,
    "category": "PMIC",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2207062115_Shenzhen-JingYang-JY1117E33AX_C3038113.pdf",
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    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "Ground return for the fixed-output 3.3 V version. On the adjustable variant this same pin is the Adj feedback input; because JY1117E33AX is a fixed-mode part, it is tied to system ground. Per datasheet 'Ground only for Fixed-Mode'."
      },
      {
        "number": "2",
        "name": "VOUT",
        "type": "power_out",
        "description": "Regulated 3.3 V output (typ 3.300 V, min 3.235 V, max 3.365 V at IOUT=10 mA). Rated for 1 A continuous. Requires a minimum 0.2 µF X7R/X5R MLCC (or 3.3 µF EL, 10 mΩ ≤ ESR ≤ 1 Ω) from this pin to ground for stability. The SOT-223 tab is internally connected to VOUT and serves as the heat-sink pad."
      },
      {
        "number": "3",
        "name": "VIN",
        "type": "power_in",
        "description": "Regulator input supply, 2.7 V to 12 V operating (abs max -0.3 V to 15 V). Must be at least VOUT + 1.4 V (dropout) to regulate; datasheet recommends at least 1.5 V headroom above VOUT. A local input storage capacitor to ground is required to prevent the input from sagging below the dropout during load transients."
      }
    ],
    "provenance": {
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        "pages": 14,
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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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      "footprint": "viewers/footprint.html"
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    "pin1": {
      "pad": "1",
      "at": [
        -3.15,
        -2.3
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "SOT-223-3_TabPin2@sha256:8ae5f03e2c16377a",
      "mark": "drawn"
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        "units": "mm",
        "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": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "jy1117e33ax-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
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  },
  "title": "JY1117E33AX",
  "brief": "Shenzhen JingYang Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223-4. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "discovery_triggers": [
    "jy1117e33ax"
  ],
  "discovery_pitch": "JY1117E33AX (Shenzhen JingYang) component page with datasheet-verified CAD.",
  "visibility": "public"
}