[DEPRECATED] 1 A Low-Dropout Regulator - AMS1117 → ams-ams1117 / umw-ams1117

{
  "schema_version": 1,
  "type": "component",
  "slug": "ams1117",
  "title": "[DEPRECATED] 1 A Low-Dropout Regulator - AMS1117 → ams-ams1117 / umw-ams1117",
  "brief": "DEPRECATED - split by manufacturer. Use adom/ams-ams1117 (Advanced Monolithic Systems: 1.5-5.0 V incl. 2.85 V, SOT-223/TO-252/SO-8) or adom/umw-ams1117 (UMW/Youtai: 1.2-5.0 V, SOT-223/TO-252/SOT-89). The two vendors ship different voltage lineups, different packages and materially different limits.",
  "version": "1.2.2",
  "tags": [
    "deprecated",
    "component",
    "ic",
    "ldo",
    "regulator",
    "voltage-regulator",
    "linear-regulator",
    "power",
    "ams1117",
    "sot-223",
    "kicad",
    "adom-lbr",
    "alias",
    "ams-ams1117",
    "umw-ams1117"
  ],
  "sample_prompts": [
    "Which AMS1117 page should I use, AMS or UMW?"
  ],
  "component": {
    "mpn": "AMS1117",
    "manufacturer": "Advanced Monolithic Systems",
    "category": "Voltage Regulator",
    "parts": {
      "symbol": "ams1117.kicad_sym",
      "footprint": "ams1117-sot223.kicad_mod",
      "model_3d": "ams1117-sot223.glb"
    },
    "model_3d_path": "ams1117-sot223.glb"
  },
  "metadata": {
    "specs": {
      "Output current": "1 A",
      "Fixed output voltages": "1.5/1.8/2.5/2.85/3.3/5.0 V (AMS), 1.2/1.5/1.8/2.5/3.3/5.0 V (UMW), also adjustable",
      "Reference voltage": "1.250 V typ (1.232 - 1.268 V)",
      "Dropout voltage": "1.1 V typ, 1.3 V max at 0.8 A",
      "Input voltage": "15 V abs max (AMS) / 18 V abs max (UMW)",
      "Line regulation": "0.2 % max",
      "Load regulation": "0.4 % max",
      "Current limit": "1100 mA typ (AMS) / 2.1-2.5 A (UMW)",
      "Quiescent current": "5 mA typ, 11 mA max",
      "Ripple rejection": "60 dB min, 72 dB typ at 120 Hz",
      "Protection": "Current limit + thermal shutdown, 165 C (AMS) / 150 C (UMW)",
      "Packages": "SOT-223 / TO-252 (DPAK) / 8-lead SOIC (AMS); SOT-223 / TO-252 / SOT-89 (UMW)",
      "Junction temperature": "-40 to +125 C",
      "Manufacturers": "Advanced Monolithic Systems (primary) + UMW / Youtai Semiconductor (second source)"
    },
    "cad_provenance": "Symbols generated with adom-symbol from the datasheet pin connections. Footprints and STEP models are the KiCad 10 official library parts, renamed: SOT-223-3_TabPin2, TO-252-3_TabPin2, SOIC-8_3.9x4.9mm_P1.27mm (TabPin2 is correct because the AMS1117 tab is VOUT = pin 2). GLBs converted with step2glb. Fusion and Altium libraries deliberately not shipped.",
    "deprecated": "DEPRECATED - split by manufacturer. Use adom/ams-ams1117 (Advanced Monolithic Systems: 1.5-5.0 V incl. 2.85 V, SOT-223/TO-252/SO-8) or adom/umw-ams1117 (UMW/Youtai: 1.2-5.0 V, SOT-223/TO-252/SOT-89). The two vendors ship different voltage lineups, different packages and materially different limits."
  },
  "discovery_triggers": [
    "ams1117 deprecated",
    "ams1117 which manufacturer",
    "ams1117 ams or umw"
  ],
  "discovery_pitch": "DEPRECATED. The AMS1117 page was split by manufacturer - go to adom/ams-ams1117 (Advanced Monolithic Systems) or adom/umw-ams1117 (UMW / Youtai Semiconductor) instead. Kept for reference only.",
  "org": "adom",
  "visibility": "public",
  "hero": {
    "type": "image",
    "path": "screenshots/hero.png"
  },
  "description": "DEPRECATED - this page has been split by manufacturer because AMS1117 is second-sourced and the two vendors ship different voltage lineups, different packages and materially different limits (15 V vs 18 V input max, 0.9-1.5 A vs 2.1-2.5 A current limit, 165 C vs 150 C thermal shutdown). Use adom/ams-ams1117 for Advanced Monolithic Systems parts or adom/umw-ams1117 for UMW / Youtai Semiconductor parts. Content here is kept for reference and is no longer maintained.",
  "dependencies": {},
  "kind": "component",
  "files": [
    "page.json",
    "README.md",
    "readme.html",
    "ams1117.kicad_sym",
    "ams1117-so8.kicad_sym",
    "ams1117-sot223.kicad_mod",
    "ams1117-to252.kicad_mod",
    "ams1117-so8.kicad_mod",
    "ams1117-sot223.step",
    "ams1117-to252.step",
    "ams1117-so8.step",
    "ams1117-sot223.glb",
    "ams1117-to252.glb",
    "ams1117-so8.glb",
    "ams1117.adom-lbr.json",
    "viewer-symbol.html",
    "viewer-footprints.html",
    "docs/ams1117-datasheet.pdf",
    "docs/ams1117-datasheet-umw.pdf",
    "screenshots/hero.png",
    "screenshots/datasheet-cover.png"
  ],
  "author": {
    "name": "barrett-land",
    "email": "[email protected]"
  }
}