LM3485MMX

{
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  "type": "component",
  "slug": "lm3485mmx",
  "title": "LM3485MMX",
  "brief": "Texas Instruments DC-DC Converters, VSSOP-8-0.65mm. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
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  "component": {
    "mpn": "LM3485MMX",
    "manufacturer": "Texas Instruments",
    "package": "VSSOP-8-0.65mm",
    "pin_count": 8,
    "category": "PMIC",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://www.ti.com/lit/ds/symlink/lm3485mmx.pdf",
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    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "ISENSE",
        "type": "input",
        "description": "Current sense input pin. Connects to the drain node of the external PFET so that RDS(on) sensing can be compared against the ADJ threshold for cycle-by-cycle current limiting."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Signal ground reference for the controller."
      },
      {
        "number": "3",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection."
      },
      {
        "number": "4",
        "name": "FB",
        "type": "input",
        "description": "Feedback input. Connect to a resistor divider between the regulated output and GND to program the output voltage; internal reference is 1.242 V (typical)."
      },
      {
        "number": "5",
        "name": "ADJ",
        "type": "input",
        "description": "Current-limit threshold adjustment. Sources ~5.5 µA from an internal current source through an external resistor to VIN; the resulting voltage sets the RDS(on)-based over-current trip level compared with the PFET VDS."
      },
      {
        "number": "6",
        "name": "PWR GND",
        "type": "power_in",
        "description": "Power ground for the gate driver return current."
      },
      {
        "number": "7",
        "name": "PGATE",
        "type": "output",
        "description": "Gate drive output for the external P-channel MOSFET. Output swings between VIN and (VIN − 5 V); source/sink driver resistance ~5.5 Ω / 8.5 Ω."
      },
      {
        "number": "8",
        "name": "VIN",
        "type": "power_in",
        "description": "Power supply input pin. Operating range 4.5 V to 35 V."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/lm3485mmx.pdf",
        "pages": 28,
        "sha256": "6637528b55f3e979",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
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    },
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    "pin1": {
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      "derived_from": "VSSOP-8_2.3x2mm_P0.5mm@sha256:dca72da69de3263a",
      "mark": "drawn"
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        "seat": "z = 0",
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "353552981eef35cb93635057d4aeb89aef22648c77af6fd095e328bfe6b834bd",
        "checked": "2026-10-07",
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    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "VSSOP-8-0.65mm",
      "Category": "PMIC",
      "Pins": "8"
    }
  },
  "sections": [
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  "discovery_triggers": [
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  "discovery_pitch": "LM3485MMX (Texas Instruments) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
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  "variants": [
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      "mpn": "LM3485MMX",
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  "updated_at": "2026-09-28T16:41:45.155Z"
}