main
Ray Publish 0.2.1 e16a2bb
{
  "slug": "ld1117-1-8",
  "version": "0.2.1",
  "type": "component",
  "description": "UMW Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223. Datasheet-verified pinout, KiCad symbol/footprint/3D.",
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    "pmic",
    "ld1117-1.8"
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  "dependencies": {},
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    "specs": {
      "Manufacturer": "UMW",
      "Package": "SOT-223",
      "Category": "PMIC",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "b65a8249b6e9e313",
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          "name": "Output Voltage (LD1117-1.8)",
          "symbol": "VOUT",
          "kind": "electrical",
          "unit": "V",
          "min": 1.764,
          "typ": 1.8,
          "max": 1.836,
          "conditions": "IOUT=10mA, VIN=3.8V, TJ=25°C",
          "source_page": 4,
          "source": "datasheet"
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          "name": "Line Regulation",
          "symbol": "Rline",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 9,
          "max": 18,
          "conditions": "VINMIN ≤VIN≤ 12V, VOUT=Fixed/Adj, IOUT=10mA",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Quiescent Current",
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          "unit": "mA",
          "min": null,
          "typ": 5,
          "max": 10,
          "conditions": "",
          "source_page": 5,
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          "unit": "µA",
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          "typ": 60,
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          "conditions": "",
          "source_page": 5,
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          "name": "Adjust pin Current Change",
          "symbol": "",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 0.2,
          "max": 5,
          "conditions": "0≤ IOUT≤1A, 1.4V ≤VIN-VOUT≤10V",
          "source_page": 5,
          "source": "datasheet"
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        {
          "name": "Ripple Rejection",
          "symbol": "PSRR",
          "kind": "electrical",
          "unit": "dB",
          "min": 60,
          "typ": 75,
          "max": null,
          "conditions": "fRIPPLE=120Hz, (VIN-VOUT)=3V, VRIPPLE=1VPP",
          "source_page": 5,
          "source": "datasheet"
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          "name": "Input Supply Voltage",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 18,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Lead Temperature (Soldering, 5 seconds)",
          "symbol": "TLead",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "Soldering, 5 seconds",
          "source_page": 3,
          "source": "datasheet"
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        {
          "name": "Junction Temperature Range",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature Range",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "ESD Tolerance (Minimum)",
          "symbol": "ESD",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": 2000,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Thermal Resistance from Junction to Ambient (SOT-223)",
          "symbol": "Rja",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 88,
          "max": null,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Input voltage",
          "symbol": "VIN",
          "kind": "recommended_operating",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 12,
          "conditions": "",
          "source_page": 3,
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        {
          "name": "Junction Temperature Range",
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          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
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    }
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    "mpn": "LD1117-1.8",
    "manufacturer": "UMW",
    "package": "SOT-223",
    "pin_count": 3,
    "category": "PMIC",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
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    "distributor_links": {
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    },
    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the fixed-output LD1117-1.8. On the adjustable LD1117-ADJ this same pin functions as the ADJ feedback node (VREF=1.25V nominal); on fixed versions the internal F1/F2 divider is connected and the ADJ path (A) is disconnected, so the pin is a plain ground return."
      },
      {
        "number": "2",
        "name": "VOUT",
        "type": "power_out",
        "description": "Regulated 1.8V output (1.764V min / 1.836V max at IOUT=10mA, VIN=3.8V, TJ=25°C). Delivers up to 1A continuous with typical dropout of 1.2V at 1A. Requires an output capacitor for stability; internally protected by current limit (1.25-1.6A) and thermal shutdown (~150°C)."
      },
      {
        "number": "3",
        "name": "VIN",
        "type": "power_in",
        "description": "Unregulated input supply. Absolute maximum 18V; recommended operating input ≤12V. Must exceed VOUT by at least the dropout voltage (≥1.2V at 1A) to remain in regulation. Bypass with a bulk input capacitor."
      }
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      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "SOT-223-3_TabPin2@sha256:8ae5f03e2c16377a",
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        "checked": "2026-10-07",
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  },
  "title": "LD1117-1.8",
  "brief": "UMW Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "discovery_triggers": [
    "ld1117-1.8"
  ],
  "discovery_pitch": "LD1117-1.8 (UMW) component page with datasheet-verified CAD.",
  "visibility": "public"
}