TP181C33S5

{
  "schema_version": 1,
  "type": "component",
  "slug": "tp181c33s5",
  "title": "TP181C33S5",
  "brief": "TECH PUBLIC Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-5. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "pmic",
    "tp181c33s5"
  ],
  "component": {
    "mpn": "TP181C33S5",
    "manufacturer": "TECH PUBLIC",
    "package": "SOT-23-5",
    "pin_count": 5,
    "category": "PMIC",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/08ec23edf6149f3df4200114a0b2e06e.pdf",
    "parts": {
      "symbol": "tp181c33s5.kicad_sym",
      "footprint": "tp181c33s5.kicad_mod",
      "model_3d": "tp181c33s5-etched.glb",
      "model_3d_plain": "tp181c33s5.glb",
      "model_3d_step": "tp181c33s5-etched.step",
      "model_3d_step_plain": "tp181c33s5.step",
      "lbr": "tp181c33s5.lbr"
    },
    "distributor_links": {
      "lcsc": "C2827537"
    },
    "pins": [
      {
        "number": "1",
        "name": "VIN",
        "type": "power_in",
        "description": "Unregulated supply input. Absolute maximum -0.3 V to +20 V; recommended operating range up to 18 V. Bypass to GND with a 1 uF (1-10 uF) ceramic capacitor (X5R/X7R) close to the pin. For VIN > 12 V hot-plug conditions, an electrolytic or tantalum capacitor is recommended to absorb inrush spikes that could otherwise exceed 30 V."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground reference for the internal voltage reference and control circuitry. Tie directly to the system ground plane."
      },
      {
        "number": "3",
        "name": "CE",
        "type": "input",
        "description": "Chip enable (active high). VCEH >= 1.3 V enables the regulator; VCEL <= 0.7 V disables it. Absolute maximum range is GND-0.3 V to VIN+0.3 V. When CE is low (VCE=0V), the output is actively discharged through an internal ~500 Ohm resistor (RDCHG)."
      },
      {
        "number": "4",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection. Leave floating or tie to GND for mechanical stability. Datasheet marks this pin as 未接 (not connected) for the SOT-23-5 package."
      },
      {
        "number": "5",
        "name": "VOUT",
        "type": "power_out",
        "description": "Regulated 3.3 V output (min 3.234 V, max 3.366 V at VIN=4.3 V, IOUT=30 mA). Maximum output current 300 mA; short-circuit current limited to ~40 mA (ISHORT) with over-current protection at ~500 mA (ILIMIT). Requires a 1 uF (1-10 uF) X5R/X7R ceramic output capacitor to GND; absolute max range GND-0.3 V to +7 V."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/08ec23edf6149f3df4200114a0b2e06e.pdf",
        "pages": 9,
        "sha256": "a7941e6e5dad4048",
        "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": "tp181c33s5.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": "tp181c33s5-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": "4b49871ac5131b3b66d0a194475b8f21ae9099d91c6e3bcf3857829e3f70e0b5",
        "checked": "2026-10-26",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "TECH PUBLIC",
      "Package": "SOT-23-5",
      "Category": "PMIC",
      "Pins": "5"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "tp181c33s5"
  ],
  "discovery_pitch": "TP181C33S5 (TECH PUBLIC) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "tp181c33s5.kicad_sym",
    "tp181c33s5.kicad_mod",
    "tp181c33s5.glb",
    "tp181c33s5.step",
    "tp181c33s5.lbr",
    "docs/hero.png",
    "docs/tp181c33s5-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "tp181c33s5-etched.step"
  ],
  "visibility": {
    "public": true
  },
  "variants": [
    {
      "mpn": "TP181C33S5",
      "kind": "packaging"
    },
    {
      "mpn": "TP181C33S5S3L",
      "kind": "packaging"
    },
    {
      "mpn": "TP181C33S5T3",
      "kind": "packaging"
    },
    {
      "mpn": "TP181C33S5D6",
      "kind": "packaging"
    }
  ],
  "updated_at": "2026-09-25T11:14:54.062Z"
}