AMS1117CD-5.0

{
  "schema_version": 1,
  "type": "component",
  "slug": "ams1117cd-5-0",
  "title": "AMS1117CD-5.0",
  "brief": "UMW Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-252-2. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "pmic",
    "ams1117cd-5.0"
  ],
  "component": {
    "mpn": "AMS1117CD-5.0",
    "manufacturer": "UMW",
    "package": "TO-252-2",
    "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/2403191555_UMW-Youtai-Semiconductor-Co---Ltd--AMS1117CD-5-0_C347250.pdf",
    "parts": {
      "symbol": "ams1117cd-5-0.kicad_sym",
      "footprint": "ams1117cd-5-0.kicad_mod",
      "model_3d": "ams1117cd-5-0-etched.glb",
      "model_3d_plain": "ams1117cd-5-0.glb",
      "model_3d_step": "ams1117cd-5-0-etched.step",
      "model_3d_step_plain": "ams1117cd-5-0.step",
      "lbr": "ams1117cd-5-0.lbr"
    },
    "distributor_links": {
      "lcsc": "C347250"
    },
    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "Ground / return for the regulator. On the fixed-voltage AMS1117-5.0 this pin is the device ground reference (labeled GND/ADJ in the shared pinout table; on fixed versions the internal F1/F2 fuses connect it as GND)."
      },
      {
        "number": "2",
        "name": "VOUT",
        "type": "power_out",
        "description": "Regulated 5.0V output (1.176-1.224V per-cell trim; fixed 5.0V ±2% for the -5.0 variant). Requires a ≥22µF tantalum output capacitor for stability. Rated 1A continuous; current-limited at ~2.1-2.5A. On TO-252 this pin is electrically tied to the exposed tab."
      },
      {
        "number": "3",
        "name": "VIN",
        "type": "power_in",
        "description": "Unregulated input supply. Absolute maximum 18V; recommended operating input 12V max. For a 5.0V output, VIN must be ≥ VOUT + VDROP (typ. 1.2V @ 1A). A 10µF input capacitor is recommended."
      },
      {
        "number": "4",
        "name": "TAB",
        "type": "power_out",
        "description": "Exposed thermal tab on TO-252 (DPAK). Electrically connected to VOUT (pin 2) - solder to a copper pour tied to VOUT for heatsinking. Junction-to-ambient thermal resistance is 100°C/W for the TO-252 package."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2403191555_UMW-Youtai-Semiconductor-Co---Ltd--AMS1117CD-5-0_C347250.pdf",
        "pages": 13,
        "sha256": "5ec219092aa45bd9",
        "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"
    },
    "pin1": {
      "pad": "1",
      "at": [
        -5.04,
        -2.28
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "TO-252-2@sha256:18c28e5e147d5e9b",
      "mark": "drawn"
    },
    "models_3d": [
      {
        "file": "ams1117cd-5-0.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          9.9,
          6.5,
          2.32
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "3eb4c99603a4fe837c2fe9308bc174769ded87a785a0df48d2dc441432ee8b4c",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ams1117cd-5-0-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          9.9,
          6.5,
          2.32
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "2c5a50c2506b1adf5390599e757db09ff9f228a12d02845eeb0d5a7bff7bca0a",
        "checked": "2026-10-16",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "UMW",
      "Package": "TO-252-2",
      "Category": "PMIC",
      "Pins": "4"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "5ec219092aa45bd9",
      "rows": [
        {
          "name": "Output voltage (AMS1117-5.0 fixed)",
          "symbol": "VOUT",
          "kind": "electrical",
          "unit": "V",
          "min": 4.9,
          "typ": 5,
          "max": 5.1,
          "conditions": "IOUT=10mA, VIN=7V, TJ=25°C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Output accuracy (fixed versions)",
          "symbol": "",
          "kind": "tolerance",
          "unit": "%",
          "min": -2,
          "typ": null,
          "max": 2,
          "conditions": "Fixed versions (1.2V, 1.5V, 1.8V, 2.5V, 3.3V, 5.0V)",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Ripple rejection",
          "symbol": "PSRR",
          "kind": "electrical",
          "unit": "dB",
          "min": 60,
          "typ": 75,
          "max": null,
          "conditions": "fRIPPLE=120Hz, (VIN-VOUT)=3V, VRIPPLE=1VPP",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Adjust pin current change",
          "symbol": "Iadj",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 0.2,
          "max": 5,
          "conditions": "0≤ IOUT≤1A, 1.4V ≤VIN-VOUT≤10V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Adjust pin current",
          "symbol": "Iadj",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 60,
          "max": 120,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Quiescent current",
          "symbol": "Iq",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 5,
          "max": 10,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Dropout voltage",
          "symbol": "Vdrop",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 1.2,
          "max": 1.3,
          "conditions": "IOUT=1A",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Current limiting",
          "symbol": "Ilimit",
          "kind": "electrical",
          "unit": "A",
          "min": 2.1,
          "typ": null,
          "max": 2.5,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "ESD tolerance (minimum)",
          "symbol": "ESD",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": 2000,
          "typ": null,
          "max": null,
          "conditions": "Minimum ESD tolerance",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Input supply voltage (absolute maximum)",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 18,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Lead temperature (soldering)",
          "symbol": "TLead",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "Soldering, 5 seconds",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Junction temperature range (absolute maximum)",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature range",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Input voltage (recommended)",
          "symbol": "VIN",
          "kind": "recommended_operating",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 12,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Junction temperature range (recommended)",
          "symbol": "TJ",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Thermal resistance junction to ambient, TO-252",
          "symbol": "Rja",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 100,
          "max": null,
          "conditions": "Junction to ambient, TO-252 package",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Thermal shutdown",
          "symbol": "TSD",
          "kind": "electrical",
          "unit": "°C",
          "min": null,
          "typ": 150,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Output voltage temperature stability",
          "symbol": "TSOUT",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": 0.5,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Long term stability",
          "symbol": "",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": 0.3,
          "max": null,
          "conditions": "TA=125°C, 1000Hrs",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "RMS output noise",
          "symbol": "",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": 0.003,
          "max": null,
          "conditions": "% of VOUT, 10Hz≤f≤10kHz",
          "source_page": 5,
          "source": "datasheet"
        }
      ]
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "ams1117cd-5.0"
  ],
  "discovery_pitch": "AMS1117CD-5.0 (UMW) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ams1117cd-5-0.kicad_sym",
    "ams1117cd-5-0.kicad_mod",
    "ams1117cd-5-0.glb",
    "ams1117cd-5-0.step",
    "ams1117cd-5-0-etched.step",
    "ams1117cd-5-0.lbr",
    "docs/hero.png",
    "docs/ams1117cd-5-0-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-24T16:23:39.035Z"
}