TMI3252S

{
  "slug": "tmi3252s",
  "version": "0.1.0",
  "type": "component",
  "description": "TMI DC-DC Converters, SOT-23-6. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "tmi3252s",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "tmi3252s.kicad_sym",
    "tmi3252s.kicad_mod",
    "tmi3252s.glb",
    "tmi3252s.step",
    "tmi3252s.lbr",
    "docs/hero.png",
    "docs/tmi3252s-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "tmi3252s-hero.glb",
    "tmi3252s-hero.overlay.json"
  ],
  "component": {
    "mpn": "TMI3252S",
    "manufacturer": "TMI",
    "package": "SOT-23-6",
    "pin_count": 6,
    "category": "Power Management (PMIC)",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588904524836163584",
    "parts": {
      "symbol": "tmi3252s.kicad_sym",
      "footprint": "tmi3252s.kicad_mod",
      "model_3d": "tmi3252s-hero.glb",
      "model_3d_plain": "tmi3252s.glb",
      "model_3d_step": "tmi3252s-etched.step",
      "model_3d_step_plain": "tmi3252s.step",
      "lbr": "tmi3252s.lbr"
    },
    "distributor_links": {
      "lcsc": "C478942"
    },
    "distributor_check": {
      "checked_at": "2026-10-10T00:14:35Z",
      "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": "Bootstrap pin; a capacitor connected between LX and BST is required to form a floating supply across the high-side switch driver."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin; the PCB layout guide recommends a large copper area on GND to cool the chip and improve thermal performance."
      },
      {
        "number": "3",
        "name": "FB",
        "type": "input",
        "description": "Output voltage feedback input; connect FB to the center point of the external resistor divider (regulated feedback voltage 0.588 V to 0.612 V, 0.6 V typical, for TMI3252S)."
      },
      {
        "number": "4",
        "name": "EN",
        "type": "input",
        "description": "Drive to logic-high to enable the IC and to logic-low to disable it into micro-power shutdown; do not leave floating (EN high-level input minimum 1.5 V, low-level input maximum 0.3 V)."
      },
      {
        "number": "5",
        "name": "IN",
        "type": "power_in",
        "description": "Power supply pin; recommended input voltage range is 4.5 V to 18 V."
      },
      {
        "number": "6",
        "name": "LX",
        "type": "output",
        "description": "Switching pin connected to the inductor; LX voltage absolute maximum range is -0.3 V to 20 V."
      }
    ],
    "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 pin table on page 3 gives separate numbering for TMI3252/T and TMI3252S. The TMI3252S (top marki; The datasheet does not state an ERC class for the BS (bootstrap) pin. 'passive' was chosen because i; The datasheet does not state an ERC class for LX. 'output' was chosen for the switching node; the da"
        ],
        "pages_sent": 15,
        "cost_usd": 0.0597,
        "at": "2026-10-10T00:13:25"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588904524836163584",
        "pages": 15,
        "sha256": "30927acc2ca98daa",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 6,
        "described": 6,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "tmi3252s.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.8,
          2.9,
          1.55
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "c9fe686b4d1b56927a41fa84a9bc1efb61d8a45a123a3db43bcaa05c2891d635",
        "checked": "2026-10-10",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "tmi3252s-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.8,
          2.9,
          1.55
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "1d7eb5fb4db8e1f1ffecedffd5ed3badb3b12e97d4fcd59fb2bb8f45c758e611",
        "checked": "2026-10-10",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}