TMI3344

{
  "schema_version": 1,
  "type": "component",
  "slug": "tmi3344",
  "title": "TMI3344",
  "brief": "TMI DC-DC Converters, ESOP-8. 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)",
    "tmi3344",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "TMI3344",
    "manufacturer": "TMI",
    "package": "ESOP-8",
    "pin_count": 9,
    "category": "Power Management (PMIC)",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603098177046126592",
    "parts": {
      "symbol": "tmi3344.kicad_sym",
      "footprint": "tmi3344.kicad_mod",
      "model_3d": "tmi3344-hero.glb",
      "model_3d_plain": "tmi3344.glb",
      "model_3d_step": "tmi3344-etched.step",
      "model_3d_step_plain": "tmi3344.step",
      "lbr": "tmi3344.lbr"
    },
    "distributor_links": {
      "lcsc": "C5259208"
    },
    "distributor_check": {
      "checked_at": "2026-10-09T17:31:50Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "BS",
        "type": "passive",
        "description": "High-side gate driver bootstrap pin that supplies the high-side LDMOS gate driver, with a 100nF capacitor connected between BS and SW."
      },
      {
        "number": "2",
        "name": "IN",
        "type": "power_in",
        "description": "Power input pin; the recommended input voltage range is 4.5V to 30V, and the input overvoltage protection threshold is typically 32V."
      },
      {
        "number": "3",
        "name": "SW",
        "type": "output",
        "description": "Switch pin connected to the external inductor; the integrated high-side and low-side power MOSFETs drive this node."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin for the device."
      },
      {
        "number": "5",
        "name": "FB",
        "type": "input",
        "description": "Feedback pin that regulates the output against the 0.925V internal reference (±2% accuracy) via the external feedback divider."
      },
      {
        "number": "6",
        "name": "COMP",
        "type": "passive",
        "description": "External compensation pin for the error amplifier output that feeds the peak current mode PWM comparator."
      },
      {
        "number": "7",
        "name": "EN",
        "type": "input",
        "description": "Enable pin: logic-high enables the device and logic-low enters micro-power shutdown; it must not be left floating, has a 5V Zener clamp, and its sink current must stay below 1mA when pulled up through a resistor."
      },
      {
        "number": "8",
        "name": "SS",
        "type": "passive",
        "description": "Soft-start and tracking pin; an external capacitor sets the soft-start time using the 2.6µA internal charge current, and the voltage on this pin overrides the internal reference."
      },
      {
        "number": "9",
        "name": "GND",
        "type": "power_in",
        "description": "Ground exposed pad that should be connected to the power ground copper area with copper and vias for heat dissipation and noise immunity."
      }
    ],
    "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: Pin 9 is the exposed thermal pad listed as GND in the datasheet pin table; the ESOP8 leads are 1-8, ; The datasheet does not give an explicit KiCad ERC class for BS, COMP, or SS; passive was assigned ba; SW is described as the switch node connected to the inductor; output was chosen as the ERC class, wh"
        ],
        "pages_sent": 14,
        "cost_usd": 0.0542,
        "at": "2026-10-09T17:29:45"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603098177046126592",
        "pages": 14,
        "sha256": "129a64be06632fa5",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 9,
        "described": 9,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "tmi3344.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.9,
          4.9,
          1.65
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "f1718a42c5ea007e8e2dd672ac39a1bb358ee4849bd53c42e21ce83e0e5df7a9",
        "checked": "2026-10-09",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "tmi3344-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.9,
          4.9,
          1.65
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "9407dd39c4910f048766cfeced7c17ddab7e0ed5fb5617ea79494cce3995e6c0",
        "checked": "2026-10-09",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "TMI",
      "Package": "ESOP-8",
      "Category": "Power Management (PMIC)",
      "Pins": "9"
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "tmi3344"
  ],
  "discovery_pitch": "TMI3344 (TMI) 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",
    "tmi3344.kicad_sym",
    "tmi3344.kicad_mod",
    "tmi3344.glb",
    "tmi3344.step",
    "tmi3344.lbr",
    "docs/hero.png",
    "docs/tmi3344-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "tmi3344-hero.glb",
    "tmi3344-hero.overlay.json"
  ],
  "visibility": {
    "public": true
  }
}