TMI3256B

{
  "slug": "tmi3256b",
  "version": "0.1.0",
  "type": "component",
  "description": "TMI DC-DC Converters, DFN-6-EP(2x2). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "tmi3256b",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "tmi3256b.kicad_sym",
    "tmi3256b.kicad_mod",
    "tmi3256b.glb",
    "tmi3256b.step",
    "tmi3256b.lbr",
    "docs/hero.png",
    "docs/tmi3256b-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "tmi3256b-hero.glb",
    "tmi3256b-hero.overlay.json",
    "tmi3256b-etched.glb"
  ],
  "component": {
    "mpn": "TMI3256B",
    "manufacturer": "TMI",
    "package": "DFN-6-EP(2x2)",
    "pin_count": 7,
    "category": "Power Management (PMIC)",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/cdc6cb9d2b4677489edb58c434e8bb81.pdf",
    "parts": {
      "symbol": "tmi3256b.kicad_sym",
      "footprint": "tmi3256b.kicad_mod",
      "model_3d": "tmi3256b-hero.glb",
      "model_3d_plain": "tmi3256b-etched.glb",
      "model_3d_step": "tmi3256b-etched.step",
      "model_3d_step_plain": "tmi3256b.step",
      "lbr": "tmi3256b.lbr"
    },
    "distributor_links": {
      "lcsc": "C22447036"
    },
    "distributor_check": {
      "checked_at": "2026-10-28T00:27:58Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "IN",
        "type": "power_in",
        "description": "Power supply pin; input voltage range is 4.5V to 18V per the recommended operating conditions."
      },
      {
        "number": "2",
        "name": "LX",
        "type": "output",
        "description": "Switching pin; absolute maximum LX voltage is -0.3V to 20V, with -4.5V to 22V allowed for transients under 10ns."
      },
      {
        "number": "3",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin."
      },
      {
        "number": "4",
        "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": "5",
        "name": "EN",
        "type": "input",
        "description": "Drive to logic-high to enable the IC and to logic-low to disable it into micro-power shutdown; EN rising threshold is 0.95V to 1.25V and it must not be left floating."
      },
      {
        "number": "6",
        "name": "FB",
        "type": "input",
        "description": "Output voltage feedback input connected to the center point of the external resistor divider; regulated feedback voltage is 0.788V to 0.812V."
      },
      {
        "number": "7",
        "name": "GND",
        "type": "power_in",
        "description": "Ground and exposed pad; it must be connected to GND."
      }
    ],
    "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": null,
        "consensus": "skipped (clean text read)",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [],
        "pages_sent": 13,
        "cost_usd": 0.0007,
        "at": "2026-10-28T00:27:50"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/cdc6cb9d2b4677489edb58c434e8bb81.pdf",
        "pages": 13,
        "sha256": "30814d9fc50e2041",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 7,
        "described": 7,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "tmi3256b.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.0,
          1.98,
          0.64
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "9adcc63271a8d92de5c344103df65530465381f8c230b3c709e36700672df2e0",
        "checked": "2026-10-28",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "tmi3256b-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.0,
          1.98,
          0.64
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "ce30ea1cff9f54118326520cfb0188059e50a53c39651e7f8577916c7e78d3aa",
        "checked": "2026-10-28",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}