LM5141RGET

{
  "slug": "lm5141rget",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments DC-DC Converters, VQFN-24(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "lm5141rget",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "lm5141rget.kicad_sym",
    "lm5141rget.kicad_mod",
    "lm5141rget.glb",
    "lm5141rget.step",
    "lm5141rget.lbr",
    "docs/hero.png",
    "docs/lm5141rget-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "lm5141rget-hero.glb",
    "lm5141rget-hero.overlay.json"
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  "component": {
    "mpn": "LM5141RGET",
    "manufacturer": "Texas Instruments",
    "package": "VQFN-24(4x4)",
    "pin_count": 25,
    "category": "Power Management (PMIC)",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://www.ti.com/cn/lit/gpn/lm5141",
    "parts": {
      "symbol": "lm5141rget.kicad_sym",
      "footprint": "lm5141rget.kicad_mod",
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      "model_3d_plain": "lm5141rget.glb",
      "model_3d_step": "lm5141rget-etched.step",
      "model_3d_step_plain": "lm5141rget.step",
      "lbr": "lm5141rget.lbr"
    },
    "distributor_links": {
      "lcsc": "C2658017",
      "digikey": "296-46552-2-ND",
      "mouser": "595-LM5141RGET"
    },
    "distributor_check": {
      "checked_at": "2026-10-11T07:32:58Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-46552-2-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-LM5141RGET",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "DEMB",
        "type": "input",
        "description": "Diode emulation pin: connect to AGND to enable diode emulation, or to VDDA for forced PWM operation; it can also serve as a synchronization input to an external clock."
      },
      {
        "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 connection and 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 frequency from 2.2 MHz (1.8 MHz to 2.53 MHz) or from 440 kHz (300 kHz to 500 kHz); an analog voltage applied through a resistor can also shift it."
      },
      {
        "number": "5",
        "name": "DITH",
        "type": "output",
        "description": "A capacitor from DITH to AGND is charged and discharged with a 20 µA source to dither the oscillator between -5% and +5%; connecting DITH to VDDA disables dithering."
      },
      {
        "number": "6",
        "name": "OSC",
        "type": "input",
        "description": "Frequency select: connect to VDDA for 2.2 MHz oscillator frequency or to AGND for 440 kHz."
      },
      {
        "number": "7",
        "name": "LOL",
        "type": "output",
        "description": "Low-side gate driver turn-off output; LO and LOL to PGND are rated -0.3 V to VCC + 0.3 V (absolute maximum)."
      },
      {
        "number": "8",
        "name": "LO",
        "type": "output",
        "description": "Low-side gate driver turn-on output; LO and LOL to PGND are rated -0.3 V to VCC + 0.3 V (absolute maximum)."
      },
      {
        "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. Recommended operating range is 5 V to 5.25 V for VCC and VDD combined with the -0.3 V lower limit."
      },
      {
        "number": "11",
        "name": "HB",
        "type": "power_in",
        "description": "High-side driver supply for bootstrap gate drive; HB to SW is rated -0.3 V to 6.5 V absolute maximum and 5 V to 5.25 V recommended."
      },
      {
        "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. SW to PGND is rated -0.3 V to 70 V absolute maximum."
      },
      {
        "number": "13",
        "name": "HO",
        "type": "output",
        "description": "High-side gate driver turn-on output; HO and HOL to SW are rated -0.3 V to HB + 0.3 V."
      },
      {
        "number": "14",
        "name": "HOL",
        "type": "output",
        "description": "High-side gate driver turn-off output; HO and HOL to SW are rated -0.3 V to HB + 0.3 V."
      },
      {
        "number": "15",
        "name": "VIN",
        "type": "power_in",
        "description": "Supply voltage input for the VCC regulator; 3.8 V to 65 V recommended, with 70 V absolute maximum."
      },
      {
        "number": "16",
        "name": "VCCX",
        "type": "power_in",
        "description": "Optional external bias input; if VCCX is above 4.5 V it connects internally to VCC and disables the internal VCC regulator, and it should be grounded if unused."
      },
      {
        "number": "17",
        "name": "VOUT",
        "type": "input",
        "description": "Current sense amplifier input connected to the output side of the current sense resistor; VOUT and CS are rated 1.5 V to 15 V recommended."
      },
      {
        "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, with 1.5 V to 15 V recommended."
      },
      {
        "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; 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, used for loop compensation."
      },
      {
        "number": "21",
        "name": "PG",
        "type": "output",
        "description": "Open-collector power-good output that switches low when VOUT is outside the power-good window; rated -0.3 V to 6.5 V absolute maximum."
      },
      {
        "number": "22",
        "name": "SS",
        "type": "input",
        "description": "Soft-start programming pin; an external capacitor and an internal 20 µA source set the 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; EN to PGND is rated -0.3 V to 70 V absolute maximum."
      },
      {
        "number": "24",
        "name": "RES",
        "type": "output",
        "description": "Restart timer pin; the external capacitor sets the hiccup off time after 512 consecutive PWM cycles of cycle-by-cycle current limiting, and connecting RES to VDD at power-up disables hiccup mode."
      },
      {
        "number": "25",
        "name": "Thermal Pad",
        "type": "power_in",
        "description": "Exposed thermal pad on the package bottom; connect to AGND and PGND on the PCB."
      }
    ],
    "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 leaves the type for SW blank; 'passive' was assigned because it is a switchi; The datasheet lists VCC as type P without direction. It is assigned power_out because it is the inte; DITH, COMP and RES are marked I or O in the datasheet but are used as capacitor or amplifier-output "
        ],
        "pages_sent": 9,
        "cost_usd": 0.062,
        "at": "2026-10-11T07:32:44"
      },
      "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": {
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        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "096fc110543e6d324c5120c2d38e3dca87a389da9b6fac234f1fe40856295ef4",
        "checked": "2026-10-11",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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      {
        "file": "lm5141rget-etched.step",
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        "checked": "2026-10-11",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
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  }
}