TD6811

{
  "schema_version": 1,
  "type": "component",
  "slug": "td6811",
  "title": "TD6811",
  "brief": "Techcode Semicon DC-DC Converters, TSOT-23-5. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "pmic",
    "td6811"
  ],
  "component": {
    "mpn": "TD6811",
    "manufacturer": "Techcode Semicon",
    "package": "TSOT-23-5",
    "pin_count": 5,
    "category": "PMIC",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/f25d30044ef5e7287a2b4f4ecad6328e.pdf",
    "parts": {
      "symbol": "td6811.kicad_sym",
      "footprint": "td6811.kicad_mod",
      "model_3d": "td6811-etched.glb",
      "model_3d_plain": "td6811.glb",
      "model_3d_step": "td6811-etched.step",
      "model_3d_step_plain": "td6811.step",
      "lbr": "td6811.lbr"
    },
    "distributor_links": {
      "lcsc": "C189486"
    },
    "pins": [
      {
        "number": "1",
        "name": "RUN",
        "type": "input",
        "description": "Run Control Input. Forcing this pin above 1.5V enables the part; forcing it below 0.3V shuts down the device. In shutdown, all functions are disabled, drawing <1uA supply current. Do not leave RUN floating."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin. Return for the internal power stage and control circuitry; must provide a low-impedance return to the input decoupling capacitor."
      },
      {
        "number": "3",
        "name": "SW",
        "type": "output",
        "description": "Switch Node connection to the external inductor. Connects to the drains of the internal main P-channel and synchronous N-channel power MOSFET switches. Peak SW current rated 1.8A."
      },
      {
        "number": "4",
        "name": "VIN",
        "type": "power_in",
        "description": "Main Supply Pin, 2.5V to 5.5V input range. Must be closely decoupled to GND (Pin 2) with a 2.2uF or greater ceramic capacitor."
      },
      {
        "number": "5",
        "name": "VFB/VOUT",
        "type": "input",
        "description": "Dual-function feedback pin. On the adjustable version (TD6811, blank suffix) this is VFB, which receives the feedback voltage from an external resistive divider across the output and regulates to the 0.6V internal reference. On fixed-output versions (TD6811-12/-15/-18) it is VOUT, connecting directly to the output rail so an internal resistive divider sets 1.2V/1.5V/1.8V."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/f25d30044ef5e7287a2b4f4ecad6328e.pdf",
        "pages": 17,
        "sha256": "abf6be4c3bb33c72",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 5,
        "described": 5,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "pin1": {
      "pad": "1",
      "at": [
        -1.1375,
        -0.95
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "SOT-23-5@sha256:455a3f7c3e5eb5b8",
      "mark": "drawn"
    },
    "models_3d": [
      {
        "file": "td6811.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,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "720a6eab0024069bbee68e7cb4c3ff1149468a34611225cdc852662c5d0ec2b7",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "td6811-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,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "e2d00ab6428578d7153f3f276b4ebab4e5e9db4a8c92a387cedfdabe05eda577",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Techcode Semicon",
      "Package": "TSOT-23-5",
      "Category": "PMIC",
      "Pins": "5"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "td6811"
  ],
  "discovery_pitch": "TD6811 (Techcode Semicon) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "td6811.kicad_sym",
    "td6811.kicad_mod",
    "td6811.glb",
    "td6811.step",
    "td6811-etched.step",
    "td6811.lbr",
    "docs/hero.png",
    "docs/td6811-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "variants": [
    {
      "mpn": "TD6811T",
      "kind": "packaging"
    },
    {
      "mpn": "TD6811T12",
      "kind": "packaging"
    },
    {
      "mpn": "TD6811T15",
      "kind": "packaging"
    },
    {
      "mpn": "TD6811T18",
      "kind": "packaging"
    }
  ],
  "updated_at": "2026-09-25T09:34:24.057Z"
}