L7983PU33R

{
  "schema_version": 1,
  "type": "component",
  "slug": "l7983pu33r",
  "title": "L7983PU33R",
  "brief": "STMicroelectronics DC-DC Converters, DFN-10-EP(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "power management (pmic)",
    "l7983pu33r",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "L7983PU33R",
    "manufacturer": "STMicroelectronics",
    "package": "DFN-10-EP(3x3)",
    "pin_count": 11,
    "category": "Power Management (PMIC)",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588919137406234624",
    "parts": {
      "symbol": "l7983pu33r.kicad_sym",
      "footprint": "l7983pu33r.kicad_mod",
      "model_3d": "l7983pu33r-hero.glb",
      "model_3d_plain": "l7983pu33r.glb",
      "model_3d_step": "l7983pu33r-etched.step",
      "model_3d_step_plain": "l7983pu33r.step",
      "lbr": "l7983pu33r.lbr"
    },
    "distributor_links": {
      "lcsc": "C1518764",
      "digikey": "497-L7983PU33RTR-ND",
      "mouser": "511-L7983PU33R"
    },
    "distributor_check": {
      "checked_at": "2026-10-11T18:55:46Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "497-L7983PU33RTR-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "511-L7983PU33R",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VOUT/FB",
        "type": "input",
        "description": "Output voltage sensing pin: in the fixed-output part (L7983PU33R) it is VOUT, sensed through an internal voltage divider, with an absolute maximum of 5.5 V."
      },
      {
        "number": "2",
        "name": "VBIAS",
        "type": "power_in",
        "description": "Input supply of the integrated LDO, typically tied to the regulated output or an auxiliary rail for light-load efficiency; connect to GND if unused, or bypass with 100 nF ceramic if supplied from the output or an auxiliary rail, with VBIAS limited to VIN + 0.3 V or 14 V max."
      },
      {
        "number": "3",
        "name": "VCC",
        "type": "power_out",
        "description": "Output of the integrated LDO that supplies the internal analog circuitry; connect a ceramic capacitor (470 nF typ.) to filter the internal voltage reference."
      },
      {
        "number": "4",
        "name": "FSW",
        "type": "passive",
        "description": "Switching frequency programming pin; connect an external resistor to VCC or GND to set the frequency (200 kHz to 2.2 MHz)."
      },
      {
        "number": "5",
        "name": "LNM/LCM",
        "type": "input",
        "description": "Dynamic mode select: low = Low Consumption Mode (LCM), high = Low Noise Mode (LNM); it can also accept an external clock for synchronization."
      },
      {
        "number": "6",
        "name": "RST",
        "type": "output",
        "description": "Active-low open-collector output for output monitoring and power-up reset sequencing, driven low when the output is out of regulation and released once it is valid."
      },
      {
        "number": "7",
        "name": "EN/UVLO",
        "type": "input",
        "description": "Active-high enable pin, VIN compatible, which can be used with an external resistor divider to set the input undervoltage lockout threshold."
      },
      {
        "number": "8",
        "name": "VIN",
        "type": "power_in",
        "description": "DC input voltage; the operating input range is 3.5 V to 60 V, with an absolute maximum of 63 V."
      },
      {
        "number": "9",
        "name": "LX",
        "type": "output",
        "description": "Switching node of the internal power stage; absolute maximum range is -0.3 V to VIN + 0.3 V."
      },
      {
        "number": "10",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin for the device."
      },
      {
        "number": "11",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The exposed pad (E.P.) is listed in Table 1 as '-- E.P.' with no numeric pin number, so it is omitte; Pin-to-position mapping (1-5 down the left side, 6-10 up the right side) was taken from the garbled ; Pin types are inferred from the datasheet descriptions because the datasheet gives no explicit ERC c",
          "exposed pad 11 added from the footprint"
        ],
        "pages_sent": 12,
        "cost_usd": 0.0382,
        "at": "2026-10-11T18:55:30"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588919137406234624",
        "pages": 43,
        "sha256": "ccf038b126583955",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 11,
        "described": 11,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "l7983pu33r.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          3,
          2.98,
          0.77
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "738e2eb45860c11759f8e4f44ab26932b7c15e4d5d6c8c9ac22ae866a3e38711",
        "checked": "2026-10-11",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "l7983pu33r-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          3,
          2.98,
          0.77
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "204ffe58143b34625377e6ff2588025d7859dbbda399c9800017b8ed24469405",
        "checked": "2026-10-11",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "STMicroelectronics",
      "Package": "DFN-10-EP(3x3)",
      "Category": "Power Management (PMIC)",
      "Pins": "11"
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "l7983pu33r"
  ],
  "discovery_pitch": "L7983PU33R (STMicroelectronics) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "l7983pu33r.kicad_sym",
    "l7983pu33r.kicad_mod",
    "l7983pu33r.glb",
    "l7983pu33r.step",
    "l7983pu33r.lbr",
    "docs/hero.png",
    "docs/l7983pu33r-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "l7983pu33r-hero.glb",
    "l7983pu33r-hero.overlay.json"
  ],
  "visibility": {
    "public": true
  }
}