MCP1259T-E

{
  "slug": "mcp1259t-e",
  "version": "0.1.0",
  "type": "component",
  "description": "Microchip Tech DC-DC Converters, MSOP-10. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management ics",
    "mcp1259t-e",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "mcp1259t-e.kicad_sym",
    "mcp1259t-e.kicad_mod",
    "mcp1259t-e.glb",
    "mcp1259t-e.step",
    "mcp1259t-e.lbr",
    "docs/hero.png",
    "docs/mcp1259t-e-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "mcp1259t-e-hero.glb",
    "mcp1259t-e-hero.overlay.json",
    "mcp1259t-e-etched.glb"
  ],
  "component": {
    "mpn": "MCP1259T-E",
    "manufacturer": "Microchip Tech",
    "package": "MSOP-10",
    "pin_count": 10,
    "category": "Power Management ICs",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/7b62d03390969708fdd1cfa34104f427.pdf",
    "parts": {
      "symbol": "mcp1259t-e.kicad_sym",
      "footprint": "mcp1259t-e.kicad_mod",
      "model_3d": "mcp1259t-e-hero.glb",
      "model_3d_plain": "mcp1259t-e-etched.glb",
      "model_3d_step": "mcp1259t-e-etched.step",
      "model_3d_step_plain": "mcp1259t-e.step",
      "lbr": "mcp1259t-e.lbr"
    },
    "distributor_links": {
      "lcsc": "C2071009"
    },
    "distributor_check": {
      "checked_at": "2026-10-30T23:53:31Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "LBO",
        "type": "output",
        "description": "Low-battery indication open-drain output that is asserted low when VIN falls below the low-battery threshold, remains low until VIN exceeds the threshold plus hysteresis, and is high impedance when SHDN or BYPASS is low."
      },
      {
        "number": "2",
        "name": "BYPASS",
        "type": "input",
        "description": "Active-low BYPASS mode input; a logic low connects the input supply VIN directly to VOUT, with the rest of the device shut down."
      },
      {
        "number": "3",
        "name": "C2-",
        "type": "passive",
        "description": "Flying capacitor negative terminal; a 1 µF ceramic flying capacitor is recommended."
      },
      {
        "number": "4",
        "name": "C1+",
        "type": "passive",
        "description": "Flying capacitor positive terminal; a 1 µF ceramic flying capacitor is recommended."
      },
      {
        "number": "5",
        "name": "VOUT",
        "type": "power_out",
        "description": "Regulated 3.3 V output, which should be bypassed to GND with a minimum of 2.2 µF."
      },
      {
        "number": "6",
        "name": "C2+",
        "type": "passive",
        "description": "Flying capacitor positive terminal; a 1 µF ceramic flying capacitor is recommended."
      },
      {
        "number": "7",
        "name": "VIN",
        "type": "power_in",
        "description": "Power supply input, recommended at 1.8 V to 3.6 V, to be bypassed to GND with a minimum of 1 µF."
      },
      {
        "number": "8",
        "name": "C1-",
        "type": "passive",
        "description": "Flying capacitor negative terminal; a 1 µF ceramic flying capacitor is recommended."
      },
      {
        "number": "9",
        "name": "GND",
        "type": "power_in",
        "description": "0 V reference, to be connected to the negative terminal of the input supply."
      },
      {
        "number": "10",
        "name": "SHDN",
        "type": "input",
        "description": "Active-low shutdown input; a logic low disables the device and a logic high allows normal operation."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The pin table on page 11 lists DFN and MSOP pin numbers together, and the MSOP column for VOUT and V; Pins 1 and 2 are shared across the MCP1256/7/8/9 family (PGOOD/LBO and SLEEP/BYPASS). Only the MCP12"
        ],
        "pages_sent": 10,
        "cost_usd": 0.0587,
        "at": "2026-10-30T23:53:16"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/7b62d03390969708fdd1cfa34104f427.pdf",
        "pages": 24,
        "sha256": "3a0b2d1cabc1160d",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 10,
        "described": 10,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "mcp1259t-e.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.9,
          3.0,
          1.1
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "b8f88eac3ce221c2ccb0b5048f9ad49c2ef4af148f8ae50c4e232e357683f547",
        "checked": "2026-10-30",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "mcp1259t-e-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.9,
          3.0,
          1.1
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "a8e18e2f1620878242f7f3e16e4160079d57622790c68fe238c9d49fcb96b0a4",
        "checked": "2026-10-30",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ],
    "package_dims": {
      "package_code": "UN (MSOP-10)",
      "source_page": 17,
      "D": {
        "nom_mm": 3.0,
        "range_mm": [
          null,
          null
        ]
      },
      "E1": {
        "nom_mm": 3.0,
        "range_mm": [
          null,
          null
        ]
      },
      "E": {
        "nom_mm": 4.9,
        "range_mm": [
          null,
          null
        ]
      },
      "e": {
        "nom_mm": 0.5,
        "range_mm": [
          null,
          null
        ]
      },
      "A": {
        "nom_mm": 1.1,
        "range_mm": [
          null,
          1.1
        ]
      },
      "source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
      "model_check": {
        "file": "mcp1259t-e.step",
        "verdict": "PASS",
        "reasons": [
          "height and body within the datasheet's package drawing"
        ],
        "by": "factory/package_fit.py"
      }
    }
  }
}