main
Ray Set visibility: public 597d363 12d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "hlm337btg",
  "title": "HLM337BTG",
  "brief": "HXY MOSFET Linear Voltage Regulators (LDO), TO-220. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
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    "subcategory": "Linear Voltage Regulators (LDO)",
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    "distributor_links": {
      "lcsc": "C22449578"
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      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
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      "mouser": {
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        "status": "quota"
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    },
    "pins": [
      {
        "number": "1",
        "name": "ADJ",
        "type": "input",
        "description": "Adjustment pin; the output voltage is set by two external resistors (120 Ω from ADJ to VOUT and R2 from ADJ to ground), with a typical ADJ pin current of 65 µA."
      },
      {
        "number": "2",
        "name": "VIN",
        "type": "power_in",
        "description": "Negative input voltage pin; the input-output voltage differential |VI - VO| must not exceed 40 V."
      },
      {
        "number": "3",
        "name": "VOUT",
        "type": "power_out",
        "description": "Regulated negative output voltage pin, adjustable from -1.25 V to -37 V at up to 1.5 A, and it needs an output capacitor for stability (C1 = 1 µF solid tantalum or 10 µF aluminum electrolytic)."
      }
    ],
    "provenance": {
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        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The ADJ pin type is inferred as input. The datasheet only gives the function as 'Adjustable'. The AD; The 1.5 A output current and -1.25 V to -37 V output range come from the page 1 text. The recommende",
          "vision extraction: provenance cannot be text-verified; needs consensus"
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        "at": "2026-10-27T09:58:54"
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        "pages": 6,
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
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        "described": 3,
        "cites_pages": true,
        "refuses_to_fabricate": true
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        "up": "Z",
        "units": "mm",
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        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
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        "zmin_mm": -9.75,
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  "metadata": {
    "specs": {
      "Manufacturer": "HXY MOSFET",
      "Package": "TO-220",
      "Category": "Power Management ICs",
      "Pins": "3"
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    "characteristics": {
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          "unit": "%/V",
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          "max": 0.05,
          "conditions": "TA = +25°C, 3V ≤ |VI - VO| ≤ 40V",
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        },
        {
          "name": "Adjustable Pin Current",
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        {
          "name": "Reference Voltage",
          "symbol": "VREF",
          "kind": "electrical",
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          "max": -1.225,
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          "source_page": 3,
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        {
          "name": "Minimum Load Current to Maintain Regulation",
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          "unit": "mA",
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        {
          "name": "Minimum Load Current to Maintain Regulation",
          "symbol": "IL(MIN)",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 1.2,
          "max": 3,
          "conditions": "3V ≤ |VI - VO| ≤ 10V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Long Term Stability",
          "symbol": "ST",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": 0.3,
          "max": 1,
          "conditions": "TJ = 125°C, 1000Hours",
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        },
        {
          "name": "Ripple Rejection Ratio",
          "symbol": "RR",
          "kind": "electrical",
          "unit": "dB",
          "min": 66,
          "typ": 77,
          "max": null,
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        {
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          "kind": "electrical",
          "unit": "%",
          "min": null,
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          "max": null,
          "conditions": "0°C ≤ TJ ≤ +125°C",
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        {
          "name": "Output Noise",
          "symbol": "eN",
          "kind": "electrical",
          "unit": "V/106",
          "min": null,
          "typ": 0.003,
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          "conditions": "TA = +25°C, 10Hz ≤ f ≤ 10KHz",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Thermal Resistance Junction to Case",
          "symbol": "RθJC",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 4,
          "max": null,
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        },
        {
          "name": "Input-Output Voltage Differential",
          "symbol": "|VI - VO|",
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          "unit": "V",
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          "typ": null,
          "max": 40,
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        {
          "name": "Operating Temperature Range",
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          "name": "Storage Temperature Range",
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          "min": -65,
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        },
        {
          "name": "Temperature Coefficient",
          "symbol": "",
          "kind": "temperature_coefficient",
          "unit": "ppm/°C",
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          "typ": 50,
          "max": null,
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      ]
    }
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  "discovery_triggers": [
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  ],
  "discovery_pitch": "HLM337BTG (HXY MOSFET) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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