LMQ61460AFSQRJRRQ1

{
  "schema_version": 1,
  "type": "component",
  "slug": "lmq61460afsqrjrrq1",
  "title": "LMQ61460AFSQRJRRQ1",
  "brief": "Texas Instruments LMQ61460-Q1 automotive 3 V to 36 V, 6 A synchronous buck converter (FPWM, spread spectrum) in the 4 x 3.5 mm VQFN-HR-14 (RJR). KiCad symbol, footprint, Fusion library and 3D.",
  "version": "0.1.0",
  "license": "CC-BY-4.0",
  "tags": [
    "component",
    "power management",
    "buck converter",
    "dc-dc",
    "automotive",
    "vqfn-hr",
    "texas instruments",
    "lmq61460afsqrjrrq1"
  ],
  "component": {
    "mpn": "LMQ61460AFSQRJRRQ1",
    "manufacturer": "Texas Instruments",
    "package": "VQFN-HR-14 (RJR0014A), 4.0 x 3.5 x 0.9 mm, wettable flanks",
    "pin_count": 14,
    "category": "Power Management",
    "subcategory": "Switching Regulators (Buck)",
    "body_size": {
      "x_mm": 4,
      "y_mm": 3.5,
      "z_mm": 0.9,
      "pitch_mm": 0.5
    },
    "datasheet": "https://www.ti.com/lit/ds/symlink/lmq61460-q1.pdf",
    "parts": {
      "symbol": "lmq61460afsqrjrrq1.kicad_sym",
      "footprint": "lmq61460afsqrjrrq1.kicad_mod",
      "model_3d": "lmq61460afsqrjrrq1-hero.glb",
      "model_3d_plain": "lmq61460afsqrjrrq1-etched.glb",
      "model_3d_step": "lmq61460afsqrjrrq1-etched.step",
      "model_3d_step_plain": "lmq61460afsqrjrrq1.step",
      "lbr": "lmq61460afsqrjrrq1.lbr"
    },
    "distributor_links": {
      "mouser": {
        "part": "595-Q61460AFSQRJRRQ1",
        "url": "https://www.mouser.com/en/ProductDetail/Texas-Instruments/LMQ61460AFSQRJRRQ1?qs=T94vaHKWudSsaxcxvwPPwQ%3D%3D"
      },
      "digikey": {
        "part": "296-LMQ61460AFSQRJRRQ1TR-ND",
        "url": "https://www.digikey.com/en/products/detail/texas-instruments/LMQ61460AFSQRJRRQ1/13542533"
      },
      "lcsc": {
        "part": "C1518767",
        "url": "https://www.lcsc.com/product-detail/C1518767.html"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "BIAS",
        "type": "power_in",
        "description": "Input to the internal LDO. Tie to VOUT (12 V or less) for best efficiency, otherwise to ground. Optional 0.1 uF to 1 uF to ground. Corner L-shaped pad."
      },
      {
        "number": "2",
        "name": "VCC",
        "type": "power_out",
        "description": "Internal LDO output. Connect 1 uF to AGND only; no external load."
      },
      {
        "number": "3",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground. FB and VCC are referred to this pin. Connect to PGND1 and PGND2 on the PCB."
      },
      {
        "number": "4",
        "name": "FB",
        "type": "input",
        "description": "Feedback input. Connect to the output divider tap (adjustable version). Do not float or ground."
      },
      {
        "number": "5",
        "name": "PGOOD",
        "type": "open_collector",
        "description": "Open-drain power-good output; pull up through a resistor. High = power OK. May be left open or grounded if unused. Corner L-shaped pad."
      },
      {
        "number": "6",
        "name": "RT",
        "type": "passive",
        "description": "Switching frequency set: resistor to ground (5.76 kOhm to 66.5 kOhm sets 2.2 MHz to 200 kHz). Do not float or ground."
      },
      {
        "number": "7",
        "name": "EN/SYNC",
        "type": "input",
        "description": "Precision enable and synchronization input. High = on, low = off; can be tied to VIN. Do not float."
      },
      {
        "number": "8",
        "name": "VIN1",
        "type": "power_in",
        "description": "Input supply. Bypass to PGND1 close to the pin; low-impedance connection to VIN2."
      },
      {
        "number": "9",
        "name": "PGND1",
        "type": "power_in",
        "description": "Power ground. Bypass VIN1 to this pin; low-impedance connection to PGND2. Corner L-shaped pad."
      },
      {
        "number": "10",
        "name": "SW",
        "type": "power_out",
        "description": "Switch node; connect to the output inductor. Long pad, paste split into two apertures."
      },
      {
        "number": "11",
        "name": "PGND2",
        "type": "power_in",
        "description": "Power ground. Bypass VIN2 to this pin; low-impedance connection to PGND1. Corner L-shaped pad."
      },
      {
        "number": "12",
        "name": "VIN2",
        "type": "power_in",
        "description": "Input supply. Bypass to PGND2 close to the pin; low-impedance connection to VIN1."
      },
      {
        "number": "13",
        "name": "RBOOT",
        "type": "passive",
        "description": "Boot resistor: a resistor (0 Ohm to open) from RBOOT to CBOOT sets the switch-node rise time."
      },
      {
        "number": "14",
        "name": "CBOOT",
        "type": "passive",
        "description": "Bootstrap: 100 nF capacitor from CBOOT to SW."
      }
    ],
    "provenance": {
      "file": "provenance/provenance.json",
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/lmq61460-q1.pdf",
        "source_tier": "mfr"
      },
      "cad": "Adom-authored from the manufacturer drawings (see provenance/provenance.json); no manufacturer CAD files are redistributed",
      "pins": {
        "total": 14,
        "described": 14,
        "cites_pages": true
      }
    },
    "manufacturer_links": {
      "product": "https://www.ti.com/product/LMQ61460-Q1",
      "datasheet": "https://www.ti.com/lit/ds/symlink/lmq61460-q1.pdf"
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "lmq61460afsqrjrrq1.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin",
        "seat": "z = 0 (PCB top surface)",
        "extents_mm": [
          4,
          3.5,
          0.9
        ],
        "zmin_mm": 0,
        "footprint_binding": "identity",
        "classification": "AI-created",
        "sha256": "95f64972a766acbfbecf3a287397ecff1701dd7ac7b05b7f0660998b93e55093",
        "checked": "2026-10-17",
        "checked_by": "step2glb features (Z-up, seat, bbox) + component-hero align guard"
      },
      {
        "file": "lmq61460afsqrjrrq1-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin",
        "seat": "z = 0 (PCB top surface)",
        "extents_mm": [
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          3.5,
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        "zmin_mm": 0,
        "footprint_binding": "identity",
        "classification": "AI-created",
        "sha256": "f0767cefb49a986e7c972d251e9472b003640b617fa2c20ccf9ae12639630fb0",
        "checked": "2026-10-17",
        "checked_by": "step2glb features (Z-up, seat, bbox) + component-hero align guard"
      }
    ],
    "viewer_3d": {
      "ground": true
    }
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "VQFN-HR-14 (RJR0014A), 4.0 x 3.5 x 0.9 mm, wettable flanks",
      "Category": "Power Management",
      "Input voltage (operating)": "3 V to 36 V (42 V abs max, load dump)",
      "Output current": "6 A",
      "Output voltage": "1 V to 0.95 x VIN (adjustable)",
      "Switching frequency": "200 kHz to 2.2 MHz (adjustable, synchronizable)",
      "Light-load mode": "FPWM (forced PWM)",
      "Spread spectrum": "Yes",
      "Junction temperature": "-40 C to +150 C (AEC-Q100 grade 1)",
      "MSL": "Level 2, 260 C",
      "Top marking (manufacturer)": "Q6146Q",
      "Packing": "3000 / large tape and reel"
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "lmq61460afsqrjrrq1",
    "LMQ61460AFSQRJRRQ1",
    "LMQ61460-Q1",
    "LMQ61460AFS-Q1",
    "lmq61460"
  ],
  "discovery_pitch": "LMQ61460AFSQRJRRQ1 (Texas Instruments) component page: pinout, KiCad symbol, footprint, Fusion library and 3D with per-file provenance.",
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png",
    "headline": "LMQ61460AFSQRJRRQ1",
    "subhead": "36 V, 6 A automotive synchronous buck, VQFN-HR-14"
  },
  "files": [
    "page.json",
    "README.md",
    "LICENSE",
    "lmq61460afsqrjrrq1.kicad_sym",
    "lmq61460afsqrjrrq1.kicad_mod",
    "lmq61460afsqrjrrq1.lbr",
    "lmq61460afsqrjrrq1.step",
    "lmq61460afsqrjrrq1.glb",
    "lmq61460afsqrjrrq1-hero.glb",
    "lmq61460afsqrjrrq1-hero.overlay.json",
    "docs/hero.png",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "provenance/provenance.json",
    "lmq61460afsqrjrrq1-etched.step",
    "lmq61460afsqrjrrq1-etched.glb",
    "provenance/lmq61460afsqrjrrq1-etched.check.json",
    "provenance/lmq61460afsqrjrrq1-features.json",
    "provenance/lmq61460afsqrjrrq1-etched.mark-plan.json",
    "provenance/lmq61460afsqrjrrq1-etched.check.png",
    "provenance/lmq61460afsqrjrrq1-hero-preview.png",
    "provenance/tools/make_lmq61460_step.py"
  ],
  "visibility": {
    "public": true
  },
  "eda_assets": {
    "kicad": {
      "symbol": "lmq61460afsqrjrrq1.kicad_sym",
      "footprint": "lmq61460afsqrjrrq1.kicad_mod",
      "model": "lmq61460afsqrjrrq1-etched.step",
      "provenance": "authored"
    }
  },
  "source": {
    "tool": "texas-instruments",
    "url": "https://www.ti.com/product/LMQ61460-Q1"
  },
  "updated_at": "2026-10-17T19:07:44.527Z"
}