MP2122AGJ-Z

{
  "slug": "mp2122agj-z",
  "version": "0.1.0",
  "type": "component",
  "description": "Monolithic Power Systems DC-DC Converters, TSOT-23-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power supply chip",
    "mp2122agj-z",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "mp2122agj-z.kicad_sym",
    "mp2122agj-z.kicad_mod",
    "mp2122agj-z.glb",
    "mp2122agj-z.step",
    "mp2122agj-z.lbr",
    "docs/hero.png",
    "docs/mp2122agj-z-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "mp2122agj-z-hero.glb",
    "mp2122agj-z-hero.overlay.json",
    "mp2122agj-z-etched.glb"
  ],
  "component": {
    "mpn": "MP2122AGJ-Z",
    "manufacturer": "Monolithic Power Systems",
    "package": "TSOT-23-8",
    "pin_count": 8,
    "category": "Power Supply Chip",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/2e8a60c33fff0a2f506b42bea5ea0be4.pdf",
    "parts": {
      "symbol": "mp2122agj-z.kicad_sym",
      "footprint": "mp2122agj-z.kicad_mod",
      "model_3d": "mp2122agj-z-hero.glb",
      "model_3d_plain": "mp2122agj-z-etched.glb",
      "model_3d_step": "mp2122agj-z-etched.step",
      "model_3d_step_plain": "mp2122agj-z.step",
      "lbr": "mp2122agj-z.lbr"
    },
    "distributor_links": {
      "lcsc": "C3194324",
      "digikey": "1589-MP2122AGJ-ZTR-ND",
      "mouser": "946-MP2122AGJ-Z"
    },
    "distributor_check": {
      "checked_at": "2026-10-27T00:15:51Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "1589-MP2122AGJ-ZTR-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "946-MP2122AGJ-Z",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "FB2",
        "type": "input",
        "description": "Feedback 2 is the error amplifier input for channel 2, connected to the tap of an external divider between the output and GND to set the regulation voltage (reference 0.608V)."
      },
      {
        "number": "2",
        "name": "EN2",
        "type": "input",
        "description": "Channel 2 enable input for buck 2, with an EN high threshold of 1.2V and an EN low threshold of 0.4V over -40°C to +85°C."
      },
      {
        "number": "3",
        "name": "SW2",
        "type": "output",
        "description": "Channel 2 switch node connects the channel 2 high-side and low-side power MOSFETs to the inductor."
      },
      {
        "number": "4",
        "name": "EN1",
        "type": "input",
        "description": "Channel 1 enable input for buck 1, with an EN high threshold of 1.2V and an EN low threshold of 0.4V over -40°C to +85°C."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the device, which also serves as the heat sink connection to the PCB GND plane."
      },
      {
        "number": "6",
        "name": "SW1",
        "type": "output",
        "description": "Channel 1 switch node connects the channel 1 high-side and low-side power MOSFETs to the inductor."
      },
      {
        "number": "7",
        "name": "IN",
        "type": "power_in",
        "description": "Input supply operating from 2.7V to 6V, which requires a decoupling capacitor to ground to reduce switching spikes."
      },
      {
        "number": "8",
        "name": "FB1",
        "type": "input",
        "description": "Feedback 1 is the error amplifier input for channel 1, connected to the tap of an external divider between the output and GND to set the regulation voltage (reference 0.608V)."
      }
    ],
    "provenance": {
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      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-5-5",
        "primary_mode": "text",
        "consensus_model": null,
        "consensus": "skipped (clean text read)",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [],
        "pages_sent": 16,
        "cost_usd": 0.0009,
        "at": "2026-10-27T00:15:22"
      },
      "datasheet": {
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        "pages": 16,
        "sha256": "a457df4f2372cf1c",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          2.9,
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        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "dc644a91883054d8f75e38542e63c2050dc8f2e8b7f12e1c57dcd93245fbd473",
        "checked": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "mp2122agj-z-etched.step",
        "role": "eda",
        "up": "Z",
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        "sha256": "ca39f01fc788ed5d500ac6d3d02895002a083d366b1e2e93768d999e4152f0a1",
        "checked": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}