main
Ray Set visibility: public dcb4e6c 1d ago
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{
  "schema_version": 1,
  "type": "component",
  "slug": "ldk120m-r",
  "title": "LDK120M-R",
  "brief": "STMicroelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-5. 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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    "power management (pmic)",
    "ldk120m-r",
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  ],
  "component": {
    "mpn": "LDK120M-R",
    "manufacturer": "STMicroelectronics",
    "package": "SOT-23-5",
    "pin_count": 5,
    "category": "Power Management (PMIC)",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "https://www.st.com/resource/en/datasheet/ldk120m-r.pdf",
    "parts": {
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      "footprint": "ldk120m-r.kicad_mod",
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      "model_3d_plain": "ldk120m-r-etched.glb",
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      "lbr": "ldk120m-r.lbr"
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    "distributor_links": {
      "lcsc": "C2970342",
      "digikey": "497-13501-2-ND",
      "mouser": "511-LDK120M-R"
    },
    "distributor_check": {
      "checked_at": "2026-11-05T22:35:08Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "497-13501-2-ND",
        "status": "found"
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      "mouser": {
        "pn": "511-LDK120M-R",
        "status": "found"
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    "pins": [
      {
        "number": "1",
        "name": "IN",
        "type": "power_in",
        "description": "Input voltage of the LDO, operating from 1.9 V to 5.5 V with a DC input voltage absolute maximum of 7 V."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Common ground for the regulator."
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      {
        "number": "3",
        "name": "EN",
        "type": "input",
        "description": "Enable logic input: Low = shutdown, High = active, with enable logic low maximum 0.4 V and logic high minimum 1.2 V."
      },
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        "name": "ADJ",
        "type": "input",
        "description": "Adjust pin for setting the output voltage via VOUT = VADJ(1+R1/R2) with VADJ of 800 mV typical, adjust pin current 1 µA, and ADJ/bypass pin voltage limited to 2 V maximum."
      },
      {
        "number": "5",
        "name": "OUT",
        "type": "power_out",
        "description": "Output voltage of the LDO, with 200 mA guaranteed output current."
      }
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          "extractor flagged: Pin 4 row in Table 1 is garbled in the text extraction ('43 BYP(1)/ADJ/NC'). Pin 4 is assigned to th"
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        "at": "2026-11-05T22:34:59"
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        "described": 5,
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        "sha256": "720a6eab0024069bbee68e7cb4c3ff1149468a34611225cdc852662c5d0ec2b7",
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  "metadata": {
    "specs": {
      "Manufacturer": "STMicroelectronics",
      "Package": "SOT-23-5",
      "Category": "Power Management (PMIC)",
      "Pins": "5"
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    "characteristics": {
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      "source": "datasheet",
      "datasheet_sha256": "1684d802fa69801ed76c067adc6058ee8ea6330586eeb68364b5a0f4680a8708",
      "rows": [
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          "min": 1.9,
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          "max": 5.5,
          "conditions": "",
          "source_page": 8,
          "source": "datasheet"
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          "name": "VADJ accuracy",
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          "conditions": "IOUT=1 mA, -40 °C<TJ<125 °C",
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          "name": "Output capacitor",
          "symbol": "COUT",
          "kind": "electrical",
          "unit": "µF",
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          "max": 22,
          "conditions": "Capacitance (see Section 6: Typical performance characteristics)",
          "source_page": 8,
          "source": "datasheet"
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        {
          "name": "Enable input logic high",
          "symbol": "VEN",
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          "unit": "V",
          "min": 1.2,
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          "max": null,
          "conditions": "VIN=1.9 V to 5.5 V, -40 °C<TJ<125 °C",
          "source_page": 8,
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          "name": "Enable input logic low",
          "symbol": "VEN",
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        {
          "name": "Quiescent current",
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          "typ": 30,
          "max": 60,
          "conditions": "IOUT=0 mA, -40 °C<TJ<125 °C",
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          "max": 100,
          "conditions": "IOUT=200 mA, -40 °C<TJ<125 °C",
          "source_page": 8,
          "source": "datasheet"
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        {
          "name": "Enable pin input current",
          "symbol": "IEN",
          "kind": "electrical",
          "unit": "nA",
          "min": null,
          "typ": null,
          "max": 100,
          "conditions": "VSHDN=VIN",
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          "name": "Short-circuit current",
          "symbol": "ISC",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 400,
          "max": null,
          "conditions": "RL=0",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "VIN input current in OFF mode",
          "symbol": "VIN",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "VEN=GND",
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          "source": "datasheet"
        },
        {
          "name": "Static line regulation",
          "symbol": "VOUT",
          "kind": "electrical",
          "unit": "%/V",
          "min": null,
          "typ": 0.05,
          "max": null,
          "conditions": "VOUT +1 V ≤ VIN ≤ 5.5 V, IOUT=1 mA",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Static load regulation",
          "symbol": "VOUT",
          "kind": "electrical",
          "unit": "%/mA",
          "min": null,
          "typ": 0.006,
          "max": null,
          "conditions": "IOUT=1 mA to 200 mA",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Dropout voltage",
          "symbol": "VDROP",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 100,
          "max": null,
          "conditions": "IOUT=100 mA, VOUT=2.5 V",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Dropout voltage",
          "symbol": "VDROP",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 150,
          "max": 300,
          "conditions": "IOUT=200 mA, VOUT=2.5 V, 40 °C<TJ<125 °C",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Output noise voltage",
          "symbol": "eN",
          "kind": "electrical",
          "unit": "µVRMS",
          "min": null,
          "typ": 115,
          "max": null,
          "conditions": "10 Hz to 100 kHz, IOUT=10 mA, VOUT=VADJ",
          "source_page": 8,
          "source": "datasheet"
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        {
          "name": "Adjust pin current",
          "symbol": "IADJ",
          "kind": "electrical",
          "unit": "µA",
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          "max": 1,
          "conditions": "",
          "source_page": 8,
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        {
          "name": "Supply voltage rejection",
          "symbol": "SVR",
          "kind": "electrical",
          "unit": "dB",
          "min": 55,
          "typ": null,
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          "conditions": "VIN=VOUTNOM+0.5 V±VRIPPLE, VRIPPLE=0.1 V, Freq.=120 Hz to 10 kHz, IOUT=10 mA",
          "source_page": 8,
          "source": "datasheet"
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        {
          "name": "Thermal shutdown",
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          "kind": "thermal",
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          "name": "Thermal shutdown hysteresis",
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        {
          "name": "DC input voltage",
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          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 7,
          "conditions": "",
          "source_page": 6,
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          "name": "DC output voltage",
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          "conditions": "to VI + 0.3 V",
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          "name": "Storage temperature range",
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          "source_page": 6,
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          "name": "Operating junction temperature range",
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          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 6,
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        {
          "name": "Thermal resistance junction-ambient (SOT23-5L)",
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          "kind": "thermal",
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        {
          "name": "Thermal resistance junction-case (SOT23-5L)",
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          "typ": 68,
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          "conditions": "SOT23-5L",
          "source_page": 6,
          "source": "datasheet"
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  "author": {
    "name": "Ray",
    "email": "[email protected]"
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