TMI3343

{
  "schema_version": 1,
  "type": "component",
  "slug": "tmi3343",
  "title": "TMI3343",
  "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 supply chip",
    "tmi3343",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "TMI3343",
    "manufacturer": "TMI",
    "package": "ESOP-8",
    "pin_count": 9,
    "category": "Power Supply Chip",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/e150e2d43799c32cbae6f3a804a3a1d0.pdf",
    "parts": {
      "symbol": "tmi3343.kicad_sym",
      "footprint": "tmi3343.kicad_mod",
      "model_3d": "tmi3343-hero.glb",
      "model_3d_plain": "tmi3343-etched.glb",
      "model_3d_step": "tmi3343-etched.step",
      "model_3d_step_plain": "tmi3343.step",
      "lbr": "tmi3343.lbr"
    },
    "distributor_links": {
      "lcsc": "C5259206"
    },
    "distributor_check": {
      "checked_at": "2026-10-22T20:25:29Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "BS",
        "type": "passive",
        "description": "High-side gate driver bootstrap pin supplying the high-side LDMOS gate driver; connect a 100nF capacitor between BS and SW."
      },
      {
        "number": "2",
        "name": "IN",
        "type": "power_in",
        "description": "Power input pin, operating range 4.5V to 30V."
      },
      {
        "number": "3",
        "name": "SW",
        "type": "power_out",
        "description": "Switch pin connected to the external inductor."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin."
      },
      {
        "number": "5",
        "name": "FB",
        "type": "input",
        "description": "Feedback pin with 0.8V reference threshold (784-816mV), used to set the output voltage through a resistor divider."
      },
      {
        "number": "6",
        "name": "COMP",
        "type": "passive",
        "description": "External compensation pin for the peak current mode error amplifier output."
      },
      {
        "number": "7",
        "name": "EN",
        "type": "input",
        "description": "Logic-high enables the IC and logic-low disables it into micro-power shutdown; must not be left floating and EN sink current must stay below 1mA."
      },
      {
        "number": "8",
        "name": "SS",
        "type": "passive",
        "description": "Soft-start and tracking pin; an external capacitor sets the internal reference rise time and the pin voltage overrides the internal reference."
      },
      {
        "number": "9",
        "name": "GND",
        "type": "power_in",
        "description": "Ground exposed pad; connect to the power ground copper area with copper and vias."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-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 pad, numbered 9 in the pin function table but not a leaded pin on the package d; Absolute maximum ratings list a PG pin that does not exist in the pinout, which looks like a carry-o"
        ],
        "pages_sent": 15,
        "cost_usd": 0.0943,
        "at": "2026-10-22T20:24:42"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/e150e2d43799c32cbae6f3a804a3a1d0.pdf",
        "pages": 15,
        "sha256": "3bb21f4c0028d0af",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 9,
        "described": 9,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
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        "sha256": "f1718a42c5ea007e8e2dd672ac39a1bb358ee4849bd53c42e21ce83e0e5df7a9",
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  "metadata": {
    "specs": {
      "Manufacturer": "TMI",
      "Package": "ESOP-8",
      "Category": "Power Supply Chip",
      "Pins": "9"
    },
    "appearance": {
      "contacts": {
        "quote": "3) Return FB, COMP and SS/RT to signal GND pin, and connect the signal GND to power GND at a single point for best noise immunity. Connect exposed pad to power ground copper area with copper and",
        "page": 9,
        "doc": "ds.pdf",
        "material": "copper"
      },
      "version": 1,
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    "characteristics": {
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        {
          "name": "Storage Temperature Range",
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        {
          "name": "Lead Temperature (Soldering, 10s)",
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          "name": "ESD Human Body Model",
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        {
          "name": "Junction-to-ambient thermal resistance",
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          "kind": "thermal",
          "unit": "°C/W",
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        {
          "name": "Input Voltage Range",
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        {
          "name": "Under Voltage Lockout",
          "symbol": "VUVLO",
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          "name": "UVLO Hysteresis",
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          "unit": "V",
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        {
          "name": "Input OVP Voltage",
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        {
          "name": "Input Quiescent Current",
          "symbol": "IQ",
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          "unit": "mA",
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          "max": 0.48,
          "conditions": "VFB=1V",
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        {
          "name": "Input Supply Current",
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          "unit": "mA",
          "min": null,
          "typ": 0.45,
          "max": null,
          "conditions": "No load",
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        },
        {
          "name": "Shutdown Current",
          "symbol": "ISD",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 3,
          "max": 10,
          "conditions": "EN = 0V",
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        {
          "name": "Feedback Threshold Voltage",
          "symbol": "VFBTH",
          "kind": "electrical",
          "unit": "mV",
          "min": 784,
          "typ": 800,
          "max": 816,
          "conditions": "PWM operation",
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          "name": "EN Rising Threshold",
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          "unit": "V",
          "min": 1,
          "typ": 1.15,
          "max": 1.3,
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          "name": "EN Hysteresis",
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          "unit": "mV",
          "min": null,
          "typ": 100,
          "max": null,
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          "source_page": 4,
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        },
        {
          "name": "EN sink current",
          "symbol": "IEN_Sink",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "",
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        },
        {
          "name": "Soft start Time",
          "symbol": "TSS",
          "kind": "electrical",
          "unit": "ms",
          "min": null,
          "typ": 1.2,
          "max": null,
          "conditions": "CSS=NC",
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        {
          "name": "Soft start Time",
          "symbol": "TSS",
          "kind": "electrical",
          "unit": "ms",
          "min": null,
          "typ": 3.5,
          "max": null,
          "conditions": "CSS=10nF",
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        {
          "name": "Current limit cycle-by-cycle",
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          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": 4.2,
          "max": null,
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        {
          "name": "SW leakage",
          "symbol": "ISW_LEAK",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": null,
          "max": 10,
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        },
        {
          "name": "Switch On-Resistance (high side)",
          "symbol": "RDSONH",
          "kind": "electrical",
          "unit": "mΩ",
          "min": null,
          "typ": 120,
          "max": null,
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        {
          "name": "Switch On-Resistance (low side)",
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          "unit": "mΩ",
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        {
          "name": "Switching Frequency",
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        },
        {
          "name": "Minimum Turn-on Time",
          "symbol": "TON_MIN",
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          "name": "Hiccup on Time",
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        {
          "name": "Hiccup Time Before Restart",
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          "name": "Maximum Duty-cycle",
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          "unit": "%",
          "min": null,
          "typ": 91,
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          "name": "Thermal Shutdown Hysteresis",
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  "author": {
    "name": "Ray",
    "email": "[email protected]"
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