LM5050MKX-1

{
  "schema_version": 1,
  "type": "component",
  "slug": "lm5050mkx-1",
  "title": "LM5050MKX-1",
  "brief": "Texas Instruments AC-DC Controllers and Regulators, TSOT-23-6. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
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  "component": {
    "mpn": "LM5050MKX-1",
    "manufacturer": "Texas Instruments",
    "package": "TSOT-23-6",
    "pin_count": 6,
    "category": "PMIC",
    "subcategory": "AC-DC Controllers and Regulators",
    "datasheet": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2001162132_Texas-Instruments-LM5050MKX-1-NOPB_C473393.pdf",
    "parts": {
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      "model_3d_step_plain": "lm5050mkx-1.step",
      "lbr": "lm5050mkx-1.lbr"
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    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "VS",
        "type": "power_in",
        "description": "Main supply pin for all internal biasing and auxiliary supply for the internal gate-drive charge pump. Typically connected to VOUT or VIN; a separate supply may also be used. Operating range 5 V to 75 V (abs max 100 V)."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground return for the controller."
      },
      {
        "number": "3",
        "name": "OFF",
        "type": "input",
        "description": "Shutdown input. A logic-high state pulls GATE low and turns off the external MOSFET (note: body-diode current still flows). VOFF(IH) typ 1.56 V, VOFF(IL) typ 1.4 V, abs max 7 V. May be left open or tied to GND if unused (5 uA internal pulldown)."
      },
      {
        "number": "4",
        "name": "IN",
        "type": "input",
        "description": "Voltage-sense connection to the external MOSFET source pin (upstream side). Used together with OUT for the reverse-current comparator. Operating range 5 V to 75 V."
      },
      {
        "number": "5",
        "name": "GATE",
        "type": "output",
        "description": "Charge-pump gate-drive output for the external N-channel MOSFET. Regulates VGS to emulate a low forward-voltage diode; sinks up to 2.8 A (typ) during fast turn-off. Typically 12 V above IN when enabled."
      },
      {
        "number": "6",
        "name": "OUT",
        "type": "input",
        "description": "Voltage-sense connection to the external MOSFET drain pin (downstream side). Used with IN to detect forward/reverse current for the OR-ing comparator. Operating range 5 V to 75 V."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2001162132_Texas-Instruments-LM5050MKX-1-NOPB_C473393.pdf",
        "pages": 30,
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      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 6,
        "described": 6,
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        "refuses_to_fabricate": true
      }
    },
    "viewers": {
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    },
    "pin1": {
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      "at": [
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      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "SOT-23-6@sha256:f341c73aac9dcb55",
      "mark": "drawn"
    },
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        "units": "mm",
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        "seat": "z = 0",
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          2.9,
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "c9fe686b4d1b56927a41fa84a9bc1efb61d8a45a123a3db43bcaa05c2891d635",
        "checked": "2026-10-07",
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    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "TSOT-23-6",
      "Category": "PMIC",
      "Pins": "6"
    }
  },
  "sections": [
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  "discovery_triggers": [
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  "discovery_pitch": "LM5050MKX-1 (Texas Instruments) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
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  "files": [
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    "lm5050mkx-1.lbr",
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  "visibility": {
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  "variants": [
    {
      "mpn": "LM5050MKX-1",
      "kind": "packaging"
    },
    {
      "mpn": "LM5050MKX-1MK-1",
      "kind": "packaging"
    },
    {
      "mpn": "LM5050MKX-1Q0MK-1",
      "kind": "packaging"
    },
    {
      "mpn": "LM5050MKX-1Q1MK-1",
      "kind": "packaging"
    }
  ],
  "updated_at": "2026-09-28T17:01:31.830Z"
}