RT9193-28GB

{
  "schema_version": 1,
  "type": "component",
  "slug": "rt9193-28gb",
  "title": "RT9193-28GB",
  "brief": "Richtek Tech Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-5. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
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  "component": {
    "mpn": "RT9193-28GB",
    "manufacturer": "Richtek Tech",
    "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/7592646eef5d430883c87fdbac1ec17a.pdf",
    "parts": {
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      "footprint": "rt9193-28gb.kicad_mod",
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      "lbr": "rt9193-28gb.lbr"
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    "distributor_links": {
      "lcsc": "C56731"
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    "pins": [
      {
        "number": "1",
        "name": "VIN",
        "type": "power_in",
        "description": "Power input voltage. Operating range 2.5V to 5.5V (absolute max 6V). Bypass with a 1uF ceramic (X7R) capacitor to GND close to the pin."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the regulator. Must be connected to system ground."
      },
      {
        "number": "3",
        "name": "EN",
        "type": "input",
        "description": "Chip Enable (Active High). High-impedance TTL-compatible input; VIH >= 1.2V enables, VIL <= 0.4V shuts down (IBSD ~0-100nA). A 100kOhm pull-down to GND is recommended when the driving signal may float. EN input range 0V to 5.5V."
      },
      {
        "number": "4",
        "name": "BP",
        "type": "passive",
        "description": "Reference Noise Bypass. May be left floating; for lowest output noise (typ 100uVRMS, 10Hz-100kHz) connect a 22nF capacitor from BP to GND."
      },
      {
        "number": "5",
        "name": "VOUT",
        "type": "power_out",
        "description": "Regulated output voltage. Fixed 2.8V (RT9193-28 option) at up to 300mA with 220mV dropout. Requires a 1uF ceramic (X7R) output capacitor for stability; current-limited to typ 400mA with thermal shutdown at 165degC."
      }
    ],
    "provenance": {
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      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/7592646eef5d430883c87fdbac1ec17a.pdf",
        "pages": 14,
        "sha256": "b14e82017ba100e6",
        "source_tier": "mfr"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 5,
        "described": 5,
        "cites_pages": true,
        "refuses_to_fabricate": true
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    },
    "viewers": {
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      "footprint": "viewers/footprint.html"
    },
    "pin1": {
      "pad": "1",
      "at": [
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        -0.95
      ],
      "corner": "top-left",
      "source": "silk-marker",
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      "mark": "drawn"
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        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          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": "rt9193-28gb-etched.step",
        "role": "eda",
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        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": 0,
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        "footprint_binding": "identity",
        "sha256": "b316780d7ac6ec0216019d19db2dfd92a05a137f24f1ce6b31f7bf6a1066fa68",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Richtek Tech",
      "Package": "SOT-23-5",
      "Category": "PMIC",
      "Pins": "5"
    }
  },
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  "discovery_pitch": "RT9193-28GB (Richtek Tech) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
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    "path": "docs/hero.png"
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  "files": [
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  "visibility": {
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  "variants": [
    {
      "mpn": "RT9193-28GBB",
      "kind": "packaging"
    },
    {
      "mpn": "RT9193-28GBU5",
      "kind": "packaging"
    },
    {
      "mpn": "RT9193-28GBJ5",
      "kind": "packaging"
    },
    {
      "mpn": "RT9193-28GBQW",
      "kind": "packaging"
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      "mpn": "RT9193-28GBF",
      "kind": "packaging"
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  "updated_at": "2026-09-25T05:20:16.767Z"
}