RT9018A-15GSP

{
  "slug": "rt9018a-15gsp",
  "version": "0.1.0",
  "type": "component",
  "description": "Richtek Tech Linear Voltage Regulators (LDO), SOP-8-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management ics",
    "rt9018a-15gsp",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "rt9018a-15gsp.kicad_sym",
    "rt9018a-15gsp.kicad_mod",
    "rt9018a-15gsp.glb",
    "rt9018a-15gsp.step",
    "rt9018a-15gsp.lbr",
    "docs/hero.png",
    "docs/rt9018a-15gsp-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "rt9018a-15gsp-hero.glb",
    "rt9018a-15gsp-hero.overlay.json",
    "rt9018a-15gsp-etched.glb"
  ],
  "component": {
    "mpn": "RT9018A-15GSP",
    "manufacturer": "Richtek Tech",
    "package": "SOP-8-EP",
    "pin_count": 9,
    "category": "Power Management ICs",
    "subcategory": "Linear Voltage Regulators (LDO)",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/22ba22fa082247a4a79b87a3d7ed3489.pdf",
    "parts": {
      "symbol": "rt9018a-15gsp.kicad_sym",
      "footprint": "rt9018a-15gsp.kicad_mod",
      "model_3d": "rt9018a-15gsp-hero.glb",
      "model_3d_plain": "rt9018a-15gsp-etched.glb",
      "model_3d_step": "rt9018a-15gsp-etched.step",
      "model_3d_step_plain": "rt9018a-15gsp.step",
      "lbr": "rt9018a-15gsp.lbr"
    },
    "distributor_links": {
      "lcsc": "C147983",
      "digikey": "1028-1056-2-ND"
    },
    "distributor_check": {
      "checked_at": "2026-10-23T12:10:55Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "1028-1056-2-ND",
        "status": "found",
        "lifecycle": "Obsolete"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "PGOOD",
        "type": "output",
        "description": "Power Good open-drain output that goes high about 1.5ms (typ) after VOUT reaches 90% of its normal value, needing a pull-up (100kΩ to VOUT) and VDD of 4.5V to 5.5V."
      },
      {
        "number": "2",
        "name": "EN",
        "type": "input",
        "description": "Active-high chip enable with logic-high of at least 1.2V and logic-low of at most 0.7V at VDD = 5V; it is pulled high internally on RT9018A and low on RT9018B when floating."
      },
      {
        "number": "3",
        "name": "VIN",
        "type": "power_in",
        "description": "Supply input voltage for the pass transistor, recommended 1.4V to 5.5V, with a 10µF or larger input capacitor placed close to the IC."
      },
      {
        "number": "4",
        "name": "VDD",
        "type": "power_in",
        "description": "Supply voltage of the control circuitry, 3V to 5.5V and greater than VOUT + 1.5V, or 4.5V to 5.5V when the PGOOD function is used."
      },
      {
        "number": "5",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection."
      },
      {
        "number": "6",
        "name": "VOUT",
        "type": "power_out",
        "description": "Regulated output voltage supplying up to 3A, designed for ceramic output capacitors as low as 10µF."
      },
      {
        "number": "7",
        "name": "ADJ",
        "type": "input",
        "description": "Sets the output voltage via the internal feedback resistors when grounded, or with external resistors VOUT = 0.8V x (R1 + R2)/R2 with R1 and R2 above 10kΩ."
      },
      {
        "number": "8",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin of the regulator."
      },
      {
        "number": "9",
        "name": "GND",
        "type": "power_in",
        "description": "Exposed pad, ground; it must be soldered to a large PCB copper area connected to GND for maximum power dissipation."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The datasheet lists GND as '8, 9 (Exposed Pad)', so pin 9 is read as the exposed pad. The MPN suffix"
        ],
        "pages_sent": 12,
        "cost_usd": 0.1088,
        "at": "2026-10-23T12:10:41"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/22ba22fa082247a4a79b87a3d7ed3489.pdf",
        "pages": 12,
        "sha256": "369694505ffeca08",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 9,
        "described": 9,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
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      "footprint": "viewers/footprint.html"
    },
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        "role": "plain",
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        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "2d6f7e774e8143e3320cbd59eb5be9f3b7864614644e3b072006e1eb05fb7fa6",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "rt9018a-15gsp-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
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        "sha256": "2caeabc4b596286a5599d9e3c2290ce4e275b3c62da07829fb67fbdf40924d61",
        "checked": "2026-10-23",
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  }
}