LM25066APSQX

{
  "schema_version": 1,
  "type": "component",
  "slug": "lm25066apsqx",
  "title": "LM25066APSQX",
  "brief": "Texas Instruments Power Management Specialized - PMIC, WQFN-24-EP(4x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "power supply chip",
    "lm25066apsqx",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "LM25066APSQX",
    "manufacturer": "Texas Instruments",
    "package": "WQFN-24-EP(4x5)",
    "pin_count": 25,
    "category": "Power Supply Chip",
    "subcategory": "Power Management Specialized - PMIC",
    "datasheet": "https://www.ti.com/cn/lit/gpn/lm25066a",
    "parts": {
      "symbol": "lm25066apsqx.kicad_sym",
      "footprint": "lm25066apsqx.kicad_mod",
      "model_3d": "lm25066apsqx-hero.glb",
      "model_3d_plain": "lm25066apsqx.glb",
      "model_3d_step": "lm25066apsqx-etched.step",
      "model_3d_step_plain": "lm25066apsqx.step",
      "lbr": "lm25066apsqx.lbr"
    },
    "distributor_links": {
      "lcsc": "C2156171"
    },
    "distributor_check": {
      "checked_at": "2026-10-11T07:20:48Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "ADR2",
        "type": "input",
        "description": "SMBus address line 2 is a tri-state input that must be connected to GND, VDD, or left floating."
      },
      {
        "number": "2",
        "name": "ADR1",
        "type": "input",
        "description": "SMBus address line 1 is a tri-state input that must be connected to GND, VDD, or left floating."
      },
      {
        "number": "3",
        "name": "ADR0",
        "type": "input",
        "description": "SMBus address line 0 is a tri-state input that must be connected to GND, VDD, or left floating."
      },
      {
        "number": "4",
        "name": "VDD",
        "type": "power_out",
        "description": "Internal sub-regulator output providing a 4.5V bias rail, bypassed with 1 µF to GND, with a datasheet current limit of 45 mV-independent 25 to 45 mA (typ. 45 mA) and an operating range of 2.9V to 5.5V."
      },
      {
        "number": "5",
        "name": "CL",
        "type": "input",
        "description": "Current-limit range select: tie to GND for a 25 mV current-limit threshold or to VDD for a 46 mV threshold."
      },
      {
        "number": "6",
        "name": "CB",
        "type": "input",
        "description": "Circuit-breaker range select: tie to GND to set the breaker trip at 1.8x the current-limit threshold, or to VDD to set it at 3.6x."
      },
      {
        "number": "7",
        "name": "FB",
        "type": "input",
        "description": "Power-good feedback input with a 1.167V rising threshold set by an external divider from the output; an internal 24 µA sink provides hysteresis."
      },
      {
        "number": "8",
        "name": "RETRY",
        "type": "input",
        "description": "Power-up fault retry configuration: tie to GND for continuous automatic retry during faults, or to VDD to latch off after a fault."
      },
      {
        "number": "9",
        "name": "TIMER",
        "type": "passive",
        "description": "External timing capacitor pin that sets the insertion delay, fault timeout, and restart timing."
      },
      {
        "number": "10",
        "name": "PWR",
        "type": "passive",
        "description": "Resistor to this pin, together with the sense resistor RS, sets the maximum allowed power dissipation of the external pass MOSFET; the pin may float if power limiting is not used."
      },
      {
        "number": "11",
        "name": "PGD",
        "type": "output",
        "description": "Open-drain power-good output that goes high when FB exceeds 1.167V and the input is within its UVLO/OVLO window; it may be pulled up to the output rail or another voltage and is rated to 17V off-state (20V transient)."
      },
      {
        "number": "12",
        "name": "OUT",
        "type": "input",
        "description": "Output sense connected to the output rail (MOSFET source), used to determine MOSFET VDS for power limiting and to monitor output voltage; rated -0.3V to 20V to GND."
      },
      {
        "number": "13",
        "name": "GATE",
        "type": "output",
        "description": "Gate drive output for the external N-channel MOSFET, clamped internally to about 18.8V (typ.) and rated 20V maximum to GND."
      },
      {
        "number": "14",
        "name": "SENSE",
        "type": "input",
        "description": "Current-sense input connected to the load side of the sense resistor RS; VIN and SENSE are rated -0.3V to 24V to GND and must stay within -0.3V to +0.3V of each other."
      },
      {
        "number": "15",
        "name": "VIN",
        "type": "power_in",
        "description": "Positive supply input operating from 2.9V to 17V with a 24V transient rating; place a small ceramic bypass capacitor close to this pin."
      },
      {
        "number": "16",
        "name": "UVLO/EN",
        "type": "input",
        "description": "Undervoltage lockout input with a 1.16V threshold and 23 µA hysteresis current set by an external divider from VIN, also usable as a remote shutdown/enable input."
      },
      {
        "number": "17",
        "name": "OVLO",
        "type": "input",
        "description": "Overvoltage lockout input with a 1.16V threshold and 23 µA hysteresis current set by an external divider from VIN; tie to GND to disable the OVLO function."
      },
      {
        "number": "18",
        "name": "GND",
        "type": "power_in",
        "description": "Circuit ground for the device."
      },
      {
        "number": "19",
        "name": "SDA",
        "type": "bidirectional",
        "description": "SMBus/PMBus data line."
      },
      {
        "number": "20",
        "name": "SCL",
        "type": "input",
        "description": "SMBus/PMBus clock line; the PMBus input thresholds are 0.8V (low) and 2.1V (high)."
      },
      {
        "number": "21",
        "name": "SMBA",
        "type": "output",
        "description": "SMBus alert line, active low, asserted for enabled warnings and faults."
      },
      {
        "number": "22",
        "name": "VREF",
        "type": "power_in",
        "description": "Internal 2.73V reference (2.703V to 2.757V) used for ADC conversion, bypassed with 1 µF to GND; pulling this pin low resets the logic and erases the volatile memory."
      },
      {
        "number": "23",
        "name": "DIODE",
        "type": "passive",
        "description": "Connect to the base and collector of a diode-connected NPN transistor (MMBT3904) for remote temperature sensing, with the emitter to GND; tie to GND if unused."
      },
      {
        "number": "24",
        "name": "VAUX",
        "type": "input",
        "description": "Auxiliary voltage telemetry input with a full-scale input of 1.16V."
      },
      {
        "number": "25",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
    ],
    "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: Package naming mismatch: the datasheet calls the package LLP-24 (drawing SQA24B) and the TI addendum; The exposed pad is not numbered in the datasheet. I used 'EP' as a label, and it is typed passive be; Pin types are judgment calls, since the datasheet gives functions rather than ERC classes. Review th",
          "exposed pad 25 added from the footprint",
          "dropped thermal pad ['EP'] absent from footprint"
        ],
        "pages_sent": 40,
        "cost_usd": 0.2069,
        "at": "2026-10-11T07:20:30"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/lm25066a",
        "pages": 53,
        "sha256": "31a7643b9adeeb90",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 25,
        "described": 25,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "lm25066apsqx.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4,
          5,
          0.77
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "dd34955bd2f41c7d5d4f45257df2b8077e42f694598de69e58ad55ad191eecae",
        "checked": "2026-10-11",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lm25066apsqx-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4,
          5,
          0.77
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "f05a8f0630762551b581d8b79846a38c9084951a21b93ff0dc72b9418ef5ee8b",
        "checked": "2026-10-11",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "WQFN-24-EP(4x5)",
      "Category": "Power Supply Chip",
      "Pins": "25"
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "lm25066apsqx"
  ],
  "discovery_pitch": "LM25066APSQX (Texas Instruments) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
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    "README.md",
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    "lm25066apsqx.kicad_mod",
    "lm25066apsqx.glb",
    "lm25066apsqx.step",
    "lm25066apsqx.lbr",
    "docs/hero.png",
    "docs/lm25066apsqx-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "lm25066apsqx-hero.glb",
    "lm25066apsqx-hero.overlay.json"
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  "visibility": {
    "public": true
  }
}