LM25141QRGETQ1

{
  "slug": "lm25141qrgetq1",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments DC-DC Converters, VQFN-24-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "lm25141qrgetq1",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "lm25141qrgetq1.kicad_sym",
    "lm25141qrgetq1.kicad_mod",
    "lm25141qrgetq1.glb",
    "lm25141qrgetq1.step",
    "lm25141qrgetq1.lbr",
    "docs/hero.png",
    "docs/lm25141qrgetq1-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "component": {
    "mpn": "LM25141QRGETQ1",
    "manufacturer": "Texas Instruments",
    "package": "VQFN-24-EP(4x4)",
    "pin_count": 25,
    "category": "Power Management (PMIC)",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://www.ti.com/cn/lit/gpn/lm25141-q1",
    "parts": {
      "symbol": "lm25141qrgetq1.kicad_sym",
      "footprint": "lm25141qrgetq1.kicad_mod",
      "model_3d": "lm25141qrgetq1-etched.glb",
      "model_3d_plain": "lm25141qrgetq1.glb",
      "model_3d_step": "lm25141qrgetq1-etched.step",
      "model_3d_step_plain": "lm25141qrgetq1.step",
      "lbr": "lm25141qrgetq1.lbr"
    },
    "distributor_links": {
      "lcsc": "C2658001",
      "digikey": "296-45473-2-ND"
    },
    "distributor_check": {
      "checked_at": "2026-10-01T09:06:00Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-45473-2-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "DEMB",
        "type": "input",
        "description": "Diode emulation pin enabling diode emulation when connected to AGND, forced PWM mode when connected to VDDA, or external clock synchronization input."
      },
      {
        "number": "2",
        "name": "VDDA",
        "type": "power_out",
        "description": "Internal analog bias regulator output requiring a capacitor connection from VDDA to AGND."
      },
      {
        "number": "3",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground connection providing ground return for internal voltage reference and analog circuits."
      },
      {
        "number": "4",
        "name": "RT",
        "type": "input",
        "description": "Oscillator frequency adjustment pin using resistor-to-ground for frequency range 2.2 MHz (1.8-2.53 MHz) or 440 kHz (300-500 kHz), with analog voltage adjustment through resistor also supported."
      },
      {
        "number": "5",
        "name": "DITH",
        "type": "output",
        "description": "Dither output charged and discharged with 20-\u00b5A current source modulating oscillator frequency between -5% and +5%, disabled by connecting to VDDA."
      },
      {
        "number": "6",
        "name": "OSC",
        "type": "input",
        "description": "Frequency selection pin setting oscillator to 2.2 MHz when connected to VDDA or 440 kHz when connected to AGND."
      },
      {
        "number": "7",
        "name": "LOL",
        "type": "output",
        "description": "Low-side gate driver turnoff output."
      },
      {
        "number": "8",
        "name": "LO",
        "type": "output",
        "description": "Low-side gate driver turnon output."
      },
      {
        "number": "9",
        "name": "PGND",
        "type": "power_in",
        "description": "Power ground connection pin for low-side NMOS gate driver."
      },
      {
        "number": "10",
        "name": "VCC",
        "type": "power_in",
        "description": "VCC bias supply pin requiring a capacitor connection from VCC to PGND."
      },
      {
        "number": "11",
        "name": "HB",
        "type": "power_in",
        "description": "High-side driver supply pin for bootstrap gate drive."
      },
      {
        "number": "12",
        "name": "SW",
        "type": "passive",
        "description": "Switching node of the buck regulator connecting to bootstrap capacitor, source terminal of high-side MOSFET, and drain terminal of low-side MOSFET."
      },
      {
        "number": "13",
        "name": "HO",
        "type": "output",
        "description": "High-side gate driver turnon output."
      },
      {
        "number": "14",
        "name": "HOL",
        "type": "output",
        "description": "High-side gate driver turnoff output."
      },
      {
        "number": "15",
        "name": "VIN",
        "type": "power_in",
        "description": "Supply voltage input source for VCC regulator, operating from 3.8 V to 42 V."
      },
      {
        "number": "16",
        "name": "VCCX",
        "type": "power_in",
        "description": "Optional external bias supply input internally connected to VCC when above 4.5 V with internal regulator disabled; must be grounded if unused."
      },
      {
        "number": "17",
        "name": "VOUT",
        "type": "input",
        "description": "Current sense amplifier input connected to output side of current sense resistor."
      },
      {
        "number": "18",
        "name": "CS",
        "type": "input",
        "description": "Current sense amplifier input requiring low current Kelvin connection to inductor side of external current sense resistor."
      },
      {
        "number": "19",
        "name": "FB",
        "type": "input",
        "description": "Feedback pin connected to VDDA for 3.3 V fixed output, to AGND for 5 V fixed output, or to output divider network for 1.5-15 V adjustable output with 1.2 V regulation threshold."
      },
      {
        "number": "20",
        "name": "COMP",
        "type": "input",
        "description": "Output of the transconductance error amplifier."
      },
      {
        "number": "21",
        "name": "PG",
        "type": "tri_state",
        "description": "Open-collector output switching low when VOUT is outside power good window."
      },
      {
        "number": "22",
        "name": "SS",
        "type": "input",
        "description": "Soft-start programming pin with external capacitor and internal 20-\u00b5A current source setting ramp rate, turning off gate driver outputs when pulled below 80 mV."
      },
      {
        "number": "23",
        "name": "EN",
        "type": "input",
        "description": "An active high logic input enabling the controller."
      },
      {
        "number": "24",
        "name": "RES",
        "type": "output",
        "description": "Restart timer pin with external capacitor configuring hiccup mode current limiting, determining off-time before automatic restart after 512 consecutive PWM cycles with cycle-by-cycle current limiting."
      },
      {
        "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-4-5-20251001",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Exposed thermal pad is not assigned a numbered pin designation in the datasheet; designated as 'PAD'",
          "exposed pad 25 added from the footprint",
          "dropped thermal pad ['EP'] absent from footprint"
        ],
        "pages_sent": 8,
        "cost_usd": 0.1723,
        "at": "2026-10-01T09:05:44"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/lm25141-q1",
        "pages": 55,
        "sha256": "4e8600680b2accdb",
        "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"
    }
  }
}