LM5141RGER

{
  "schema_version": 1,
  "type": "component",
  "slug": "lm5141rger",
  "title": "LM5141RGER",
  "brief": "Texas Instruments DC-DC Converters, VQFN-24-EP(4x4). 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 management (pmic)",
    "lm5141rger",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "LM5141RGER",
    "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/lm5141",
    "parts": {
      "symbol": "lm5141rger.kicad_sym",
      "footprint": "lm5141rger.kicad_mod",
      "model_3d": "lm5141rger-hero.glb",
      "model_3d_plain": "lm5141rger.glb",
      "model_3d_step": "lm5141rger-etched.step",
      "model_3d_step_plain": "lm5141rger.step",
      "lbr": "lm5141rger.lbr"
    },
    "distributor_links": {
      "lcsc": "C2658020",
      "digikey": "296-48147-2-ND",
      "mouser": "595-LM5141RGER"
    },
    "distributor_check": {
      "checked_at": "2026-10-08T15:49:46Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-48147-2-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-LM5141RGER",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "DEMB",
        "type": "input",
        "description": "Diode emulation pin: connect to AGND to enable diode emulation, to VDDA for forced PWM with continuous conduction at light load, or use it as an external synchronization input."
      },
      {
        "number": "2",
        "name": "VDDA",
        "type": "power_out",
        "description": "Internal analog bias regulator output; connect a capacitor from VDDA to AGND."
      },
      {
        "number": "3",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground return for the internal voltage reference and analog circuits."
      },
      {
        "number": "4",
        "name": "RT",
        "type": "input",
        "description": "A resistor from RT to ground shifts the oscillator from 2.2 MHz (1.8 to 2.53 MHz) or 440 kHz (300 to 500 kHz), and an analog voltage applied through a resistor can also shift the frequency."
      },
      {
        "number": "5",
        "name": "DITH",
        "type": "output",
        "description": "A capacitor to AGND is charged and discharged by a 20 µA source to dither the oscillator between -5% and +5%; connecting DITH to VDDA disables dithering, and it is ignored when an external sync clock is used."
      },
      {
        "number": "6",
        "name": "OSC",
        "type": "input",
        "description": "Frequency select pin: connect to VDDA for 2.2 MHz or to AGND for 440 kHz."
      },
      {
        "number": "7",
        "name": "LOL",
        "type": "output",
        "description": "Low-side gate driver turn-off output."
      },
      {
        "number": "8",
        "name": "LO",
        "type": "output",
        "description": "Low-side gate driver turn-on output."
      },
      {
        "number": "9",
        "name": "PGND",
        "type": "power_in",
        "description": "Power ground connection for the low-side NMOS gate driver."
      },
      {
        "number": "10",
        "name": "VCC",
        "type": "power_out",
        "description": "VCC bias supply pin; connect a capacitor from VCC to PGND, with recommended VCC of up to 5.25 V (absolute maximum 6.5 V)."
      },
      {
        "number": "11",
        "name": "HB",
        "type": "power_out",
        "description": "High-side driver supply for bootstrap gate drive; recommended HB to SW is up to 5.25 V (absolute maximum 6.5 V)."
      },
      {
        "number": "12",
        "name": "SW",
        "type": "passive",
        "description": "Switching node of the buck regulator; connect to the bootstrap capacitor, the high-side MOSFET source and the low-side MOSFET drain."
      },
      {
        "number": "13",
        "name": "HO",
        "type": "output",
        "description": "High-side gate driver turn-on output."
      },
      {
        "number": "14",
        "name": "HOL",
        "type": "output",
        "description": "High-side gate driver turn-off output."
      },
      {
        "number": "15",
        "name": "VIN",
        "type": "power_in",
        "description": "Supply voltage input for the VCC regulator; recommended input range is 3.8 V to 65 V (70 V absolute maximum)."
      },
      {
        "number": "16",
        "name": "VCCX",
        "type": "power_in",
        "description": "Optional external bias input: if VCCX is above 4.5 V it is connected internally to VCC and the internal VCC regulator is disabled; ground it if unused."
      },
      {
        "number": "17",
        "name": "VOUT",
        "type": "input",
        "description": "Current sense amplifier input; connect to the output side of the current sense resistor."
      },
      {
        "number": "18",
        "name": "CS",
        "type": "input",
        "description": "Current sense amplifier input; make a low-current Kelvin connection to the inductor side of the external current sense resistor."
      },
      {
        "number": "19",
        "name": "FB",
        "type": "input",
        "description": "Connect to VDDA for a fixed 3.3 V output or to AGND for a fixed 5 V output; otherwise a divider sets 1.5 V to 15 V with a 1.2 V regulation threshold."
      },
      {
        "number": "20",
        "name": "COMP",
        "type": "input",
        "description": "Output of the transconductance error amplifier."
      },
      {
        "number": "21",
        "name": "PG",
        "type": "output",
        "description": "Open-collector output that switches low when VOUT is outside the power-good window."
      },
      {
        "number": "22",
        "name": "SS",
        "type": "input",
        "description": "Soft-start programming pin: an external capacitor and internal 20 µA source set the reference ramp, and pulling SS below 80 mV turns off the gate driver outputs."
      },
      {
        "number": "23",
        "name": "EN",
        "type": "input",
        "description": "Active-high logic input that enables the controller."
      },
      {
        "number": "24",
        "name": "RES",
        "type": "output",
        "description": "Restart timer pin: an external capacitor sets the hiccup-mode off time, hiccup starts after 512 consecutive PWM cycles with cycle-by-cycle current limiting, and connecting RES to VDD at power-up disables hiccup protection."
      },
      {
        "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: The datasheet pin table gives no number for the exposed thermal pad (only pins 1-24 are numbered). I; The pin table gives no type column entry for SW. Type 'passive' was chosen as a judgment call for th; The datasheet marks VDDA, VCC and HB as type P without specifying direction. They were mapped to pow",
          "exposed pad 25 added from the footprint"
        ],
        "pages_sent": 9,
        "cost_usd": 0.0675,
        "at": "2026-10-08T15:49:27"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/lm5141",
        "pages": 53,
        "sha256": "7e612d227f860930",
        "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": "lm5141rger.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4,
          4,
          0.77
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "f7d256794c4147daf24dcae0554fae18510315e565ad1e239b475be7fef80d8b",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lm5141rger-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          4,
          0.77
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "5944f776d1967b8eb2718b7473ec1661126968b6b6f63e7d217703e3979c29e9",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "VQFN-24-EP(4x4)",
      "Category": "Power Management (PMIC)",
      "Pins": "25"
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "lm5141rger"
  ],
  "discovery_pitch": "LM5141RGER (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"
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  "files": [
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    "lm5141rger.step",
    "lm5141rger.lbr",
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    "docs/lm5141rger-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "lm5141rger-hero.glb",
    "lm5141rger-hero.overlay.json"
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  "visibility": {
    "public": true
  }
}