ZLDO1117QK50TC

{
  "schema_version": 1,
  "type": "component",
  "slug": "zldo1117qk50tc",
  "title": "ZLDO1117QK50TC",
  "brief": "Diodes Incorporated Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-252. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "pmic",
    "zldo1117qk50tc"
  ],
  "component": {
    "mpn": "ZLDO1117QK50TC",
    "manufacturer": "Diodes Incorporated",
    "package": "TO-252",
    "pin_count": 4,
    "category": "PMIC",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2312062237_Diodes-Incorporated-ZLDO1117QK50TC_C6016205.pdf",
    "parts": {
      "symbol": "zldo1117qk50tc.kicad_sym",
      "footprint": "zldo1117qk50tc.kicad_mod",
      "model_3d": "zldo1117qk50tc-etched.glb",
      "model_3d_plain": "zldo1117qk50tc.glb",
      "model_3d_step": "zldo1117qk50tc-etched.step",
      "model_3d_step_plain": "zldo1117qk50tc.step",
      "lbr": "zldo1117qk50tc.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference pin for the fixed-output ZLDO1117Q-50 variant. On adjustable variants this same pin is the ADJ feedback node; on this 5.0V fixed-mode part it is tied internally to the reference divider and must be connected to system ground."
      },
      {
        "number": "2",
        "name": "VOUT",
        "type": "power_out",
        "description": "Regulated 5.0V output of the LDO, capable of sourcing up to 1A. Requires a minimum 4.7µF capacitor to ground (0.05Ω ≤ ESR ≤ 0.5Ω) for stability; a larger output capacitor improves AC load response. The exposed tab is also VOUT."
      },
      {
        "number": "3",
        "name": "VIN",
        "type": "power_in",
        "description": "Input supply pin, 2.7V to 18V. A large storage capacitor (0.05Ω ≤ ESR ≤ 0.5Ω) should be placed close to this pin so the input does not sag below the minimum dropout during load transients. VIN must be at least ~1.3V above VOUT for proper regulation (6.3V minimum for 5.0V output at full load)."
      },
      {
        "number": "TAB",
        "name": "VOUT",
        "type": "power_out",
        "description": "Exposed thermal tab electrically tied to VOUT. Solder to the PCB copper pour associated with the output net to conduct heat and improve power dissipation (θJA = 73 °C/W, θJC = 12 °C/W for TO252)."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2312062237_Diodes-Incorporated-ZLDO1117QK50TC_C6016205.pdf",
        "pages": 14,
        "sha256": "52a05840bdb17cd6",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 4,
        "described": 4,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    }
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Diodes Incorporated",
      "Package": "TO-252",
      "Category": "PMIC",
      "Pins": "4"
    }
  },
  "variants": [
    {
      "mpn": "ZLDO1117QK50TC",
      "kind": "packaging"
    },
    {
      "mpn": "ZLDO1117QG50TA",
      "kind": "unknown"
    }
  ],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "zldo1117qk50tc"
  ],
  "discovery_pitch": "ZLDO1117QK50TC (Diodes Incorporated) 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",
    "zldo1117qk50tc.kicad_sym",
    "zldo1117qk50tc.kicad_mod",
    "zldo1117qk50tc.glb",
    "zldo1117qk50tc.step",
    "zldo1117qk50tc.lbr",
    "docs/hero.png",
    "docs/zldo1117qk50tc-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-25T14:50:02.208Z"
}