LDL1117S12R

{
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  "type": "component",
  "slug": "ldl1117s12r",
  "title": "LDL1117S12R",
  "brief": "STMicroelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223-4. 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": "LDL1117S12R",
    "manufacturer": "STMicroelectronics",
    "package": "SOT-223-4",
    "pin_count": 4,
    "category": "Power Management (PMIC)",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
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      "lbr": "ldl1117s12r.lbr"
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    "distributor_links": {
      "lcsc": "C2926949"
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    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference connection."
      },
      {
        "number": "2",
        "name": "VOUT",
        "type": "power_out",
        "description": "Regulated output voltage of 1.185 V at up to 1.2 A maximum current."
      },
      {
        "number": "3",
        "name": "VIN",
        "type": "power_in",
        "description": "Input voltage supply ranging from 2.5 V to 18 V."
      },
      {
        "number": "4",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
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    "provenance": {
      "extractor": "extract_pins 0.2",
      "factory_chain": {
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        "extractor": "extract_pins 0.2",
        "primary_model": "claude-haiku-4-5-20251001",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Thermal pad/tab is mentioned in the note as connected to VOUT but is not explicitly numbered in Tabl",
          "exposed pad 4 added from the footprint"
        ],
        "pages_sent": 23,
        "cost_usd": 0.1259,
        "at": "2026-09-22T21:51:45"
      },
      "datasheet": {
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        "pages": 23,
        "sha256": "ffbb9e03f7f6d0c4",
        "source_tier": "lcsc"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 4,
        "described": 4,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          7.0,
          6.5,
          1.7
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        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "77ad6dbacc493cb619c728f26d2ddcf461eb0feb6b977b47d01d51e67016f654",
        "checked": "2026-10-07",
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      {
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        "centre_offset_mm": 0.0,
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        "sha256": "4bc88eb60a20c29de7746c0edf91428fe2f23deff6f8366351b08ebc8a17c104",
        "checked": "2026-10-16",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "STMicroelectronics",
      "Package": "SOT-223-4",
      "Category": "Power Management (PMIC)",
      "Pins": "4"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "ffbb9e03f7f6d0c4",
      "rows": [
        {
          "name": "Output voltage accuracy (TJ = 25 °C)",
          "symbol": "VOUT",
          "kind": "tolerance",
          "unit": "%",
          "min": -2,
          "typ": null,
          "max": 2,
          "conditions": "IOUT = 10 mA, TJ = 25 °C",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Output voltage accuracy (-40 °C to 125 °C)",
          "symbol": "VOUT",
          "kind": "tolerance",
          "unit": "%",
          "min": -3,
          "typ": null,
          "max": 3,
          "conditions": "IOUT = 10 mA, -40 °C < TJ < 125 °C",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Operating input voltage",
          "symbol": "VIN",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2.6,
          "typ": null,
          "max": 18,
          "conditions": "",
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        },
        {
          "name": "UVLO turn-on threshold",
          "symbol": "VUVLO",
          "kind": "electrical",
          "unit": "V",
          "min": 2.3,
          "typ": null,
          "max": 2.4,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "UVLO hysteresis",
          "symbol": "VUVLO",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 200,
          "max": null,
          "conditions": "",
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          "source": "datasheet"
        },
        {
          "name": "Line regulation",
          "symbol": "ΔVOUT",
          "kind": "electrical",
          "unit": "%/V",
          "min": null,
          "typ": 0.002,
          "max": 0.02,
          "conditions": "VOUT + 1 V (1) ≤ VIN ≤ 18 V, IOUT = 10 mA, -40 °C < TJ < 125 °C",
          "source_page": 6,
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        },
        {
          "name": "Load regulation",
          "symbol": "ΔVOUT",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 5,
          "max": 15,
          "conditions": "IOUT = 10 mA to 1.2 A, -40 °C < TJ < 125 °C",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage rejection (120 Hz)",
          "symbol": "SVR",
          "kind": "electrical",
          "unit": "dB",
          "min": null,
          "typ": 87,
          "max": null,
          "conditions": "VIN = VOUT(NOM) + 1 V ± VRIPPLE, VRIPPLE = 0.5 V, f = 120 Hz",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage rejection (1 kHz)",
          "symbol": "SVR",
          "kind": "electrical",
          "unit": "dB",
          "min": null,
          "typ": 80,
          "max": null,
          "conditions": "VIN = VOUT(NOM) + 1 V ± VRIPPLE, VRIPPLE = 0.5 V, f = 1 kHz",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage rejection (100 kHz)",
          "symbol": "SVR",
          "kind": "electrical",
          "unit": "dB",
          "min": null,
          "typ": 65,
          "max": null,
          "conditions": "VIN = VOUT(NOM) + 1 V ± VRIPPLE, VRIPPLE = 0.5 V, f = 100 kHz",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Quiescent current",
          "symbol": "IQ",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 250,
          "max": 500,
          "conditions": "IOUT = 0 mA to 1.2 A, -40 °C < TJ < 125 °C",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Output current (short-circuit / current limit)",
          "symbol": "ISC",
          "kind": "electrical",
          "unit": "A",
          "min": 1.5,
          "typ": 2,
          "max": null,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Thermal shutdown",
          "symbol": "TSHDN",
          "kind": "electrical",
          "unit": "°C",
          "min": null,
          "typ": 175,
          "max": null,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Thermal shutdown hysteresis",
          "symbol": "TSHDN",
          "kind": "electrical",
          "unit": "°C",
          "min": null,
          "typ": 25,
          "max": null,
          "conditions": "Hysteresis",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Input supply voltage (absolute maximum)",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 20,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Output voltage (absolute maximum)",
          "symbol": "VOUT",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "Upper limit printed as VIN + 0.3 V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Operating junction temperature",
          "symbol": "TJ-OP",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Maximum junction temperature",
          "symbol": "TJ-MAX",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 5,
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        {
          "name": "Storage temperature",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Thermal resistance junction-to-case",
          "symbol": "θJ-C",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 15,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Thermal resistance junction-to-ambient",
          "symbol": "θJ-A",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 120,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        }
      ]
    }
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    "email": "[email protected]"
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  "updated_at": "2026-09-24T23:53:19.751Z"
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