TMI3286B

{
  "slug": "tmi3286b",
  "version": "0.1.0",
  "type": "component",
  "description": "TMI DC-DC Converters, ESOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "tmi3286b",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "tmi3286b.kicad_sym",
    "tmi3286b.kicad_mod",
    "tmi3286b.glb",
    "tmi3286b.step",
    "tmi3286b.lbr",
    "docs/hero.png",
    "docs/tmi3286b-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "tmi3286b-hero.glb",
    "tmi3286b-hero.overlay.json",
    "tmi3286b-etched.glb"
  ],
  "component": {
    "mpn": "TMI3286B",
    "manufacturer": "TMI",
    "package": "ESOP-8",
    "pin_count": 9,
    "category": "Power Management (PMIC)",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589839618381283328",
    "parts": {
      "symbol": "tmi3286b.kicad_sym",
      "footprint": "tmi3286b.kicad_mod",
      "model_3d": "tmi3286b-hero.glb",
      "model_3d_plain": "tmi3286b-etched.glb",
      "model_3d_step": "tmi3286b-etched.step",
      "model_3d_step_plain": "tmi3286b.step",
      "lbr": "tmi3286b.lbr"
    },
    "distributor_links": {
      "lcsc": "C5259203"
    },
    "distributor_check": {
      "checked_at": "2026-10-17T20:45:51Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "BS",
        "type": "passive",
        "description": "Bootstrap pin; a capacitor connected between LX and BS is required to form a floating supply across the high-side switch driver."
      },
      {
        "number": "2",
        "name": "VIN",
        "type": "power_in",
        "description": "Power supply pin; recommended input voltage range is 4.5 V to 18 V."
      },
      {
        "number": "3",
        "name": "LX",
        "type": "output",
        "description": "Switching pin; absolute maximum voltage is -0.3 V to 20 V, with transients under 10 ns limited to -4.5 V to 22 V."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin."
      },
      {
        "number": "5",
        "name": "FB",
        "type": "input",
        "description": "Output voltage feedback input; connect to the center point of the external resistor divider, with absolute maximum voltage of -0.3 V to 6 V."
      },
      {
        "number": "6",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection."
      },
      {
        "number": "7",
        "name": "EN",
        "type": "input",
        "description": "Drive to logic-high to enable the IC and to logic-low to disable it into micro-power shutdown mode; do not leave EN floating."
      },
      {
        "number": "8",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection."
      },
      {
        "number": "9",
        "name": "Thermal Pad",
        "type": "power_in",
        "description": "Exposed thermal pad; connect to ground with PCB vias for thermal dissipation."
      }
    ],
    "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: Only one package (ESOP8) is offered for both TMI3286 and TMI3286B, and both use the same pinout, so ; The pin diagram on page 2 has garbled pin-number-to-name ordering in the text extraction. Pin assign; The thermal pad is listed as pin 9 in the datasheet table but is not a numbered lead on the package."
        ],
        "pages_sent": 17,
        "cost_usd": 0.0599,
        "at": "2026-10-17T20:44:38"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589839618381283328",
        "pages": 17,
        "sha256": "d75092d658528c31",
        "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": "tmi3286b.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": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "f1718a42c5ea007e8e2dd672ac39a1bb358ee4849bd53c42e21ce83e0e5df7a9",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "tmi3286b-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": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "f450364716f74785c1cad6213069c2c3fe4fdb0d83086f5704f80393eefac5a9",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}