TPSY8121BABC

{
  "schema_version": 1,
  "type": "component",
  "slug": "tpsy8121babc",
  "title": "TPSY8121BABC",
  "brief": "TECH PUBLIC DC-DC Converters, SOT-23-6. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "pmic",
    "tpsy8121babc"
  ],
  "component": {
    "mpn": "TPSY8121BABC",
    "manufacturer": "TECH PUBLIC",
    "package": "SOT-23-6",
    "pin_count": 6,
    "category": "PMIC",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/01aec3f3ab69f7d1fb5cf68807c361ad.pdf",
    "parts": {
      "symbol": "tpsy8121babc.kicad_sym",
      "footprint": "tpsy8121babc.kicad_mod",
      "model_3d": "tpsy8121babc-etched.glb",
      "model_3d_plain": "tpsy8121babc.glb",
      "model_3d_step": "tpsy8121babc-etched.step",
      "model_3d_step_plain": "tpsy8121babc.step",
      "lbr": "tpsy8121babc.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "BS",
        "type": "passive",
        "description": "Boot-strap pin. Supplies the high-side gate driver. Decouple this pin to LX with a 100nF (0.1uF) ceramic capacitor."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin. Device return; tie to the system ground plane with a short, low-impedance connection."
      },
      {
        "number": "3",
        "name": "FB",
        "type": "input",
        "description": "Output feedback pin. Connect to the center tap of the output resistor divider to program Vout = 0.6 V × (1 + R1/R2). Internal reference is 0.6V (±2%)."
      },
      {
        "number": "4",
        "name": "EN",
        "type": "input",
        "description": "Enable control input. Pull high (VIH ≥ 2V) to turn the regulator on, pull low (≤ 0.5V) to shut down. Do not float."
      },
      {
        "number": "5",
        "name": "IN",
        "type": "power_in",
        "description": "Input supply pin (4.5V to 20V). Decouple to GND with at least a 1uF (typ. 4.7uF X5R) ceramic capacitor placed as close to the IN and GND pins as possible."
      },
      {
        "number": "6",
        "name": "LX",
        "type": "power_out",
        "description": "Switching node / inductor pin. Connects to the source of the internal high-side FET and drain of the low-side FET; connect to the switching node of the output inductor."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/01aec3f3ab69f7d1fb5cf68807c361ad.pdf",
        "pages": 7,
        "sha256": "53b5795b53ca7410",
        "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"
    }
  },
  "metadata": {
    "specs": {
      "Manufacturer": "TECH PUBLIC",
      "Package": "SOT-23-6",
      "Category": "PMIC",
      "Pins": "6"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "tpsy8121babc"
  ],
  "discovery_pitch": "TPSY8121BABC (TECH PUBLIC) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "tpsy8121babc.kicad_sym",
    "tpsy8121babc.kicad_mod",
    "tpsy8121babc.glb",
    "tpsy8121babc.step",
    "tpsy8121babc.lbr",
    "docs/hero.png",
    "docs/tpsy8121babc-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "tpsy8121babc-etched.step"
  ],
  "visibility": {
    "public": true
  },
  "variants": [
    {
      "mpn": "TPSY8121BABC",
      "kind": "packaging"
    }
  ],
  "updated_at": "2026-09-25T12:51:17.504Z"
}