LM46000AQPWPRQ1

{
  "schema_version": 1,
  "type": "component",
  "slug": "lm46000aqpwprq1",
  "title": "LM46000AQPWPRQ1",
  "brief": "Texas Instruments DC-DC Converters, HTSSOP-16-EP. 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",
    "lm46000aqpwprq1",
    "factory-2.0.0",
    "extractor-text"
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  "component": {
    "mpn": "LM46000AQPWPRQ1",
    "manufacturer": "Texas Instruments",
    "package": "HTSSOP-16-EP",
    "pin_count": 17,
    "category": "Power Supply Chip",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://www.ti.com/cn/lit/gpn/lm46000-q1",
    "parts": {
      "symbol": "lm46000aqpwprq1.kicad_sym",
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      "model_3d_step": "lm46000aqpwprq1-etched.step",
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      "lbr": "lm46000aqpwprq1.lbr"
    },
    "distributor_links": {
      "lcsc": "C2071626",
      "digikey": "296-51303-2-ND",
      "mouser": "595-LM46000AQPWPRQ1"
    },
    "distributor_check": {
      "checked_at": "2026-10-11T16:58:23Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-51303-2-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-LM46000AQPWPRQ1",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "SW",
        "type": "power_out",
        "description": "Switching output of the regulator, internally connected to both power MOSFETs, to be connected to the power inductor."
      },
      {
        "number": "2",
        "name": "SW",
        "type": "power_out",
        "description": "Switching output of the regulator, internally connected to both power MOSFETs, to be connected to the power inductor."
      },
      {
        "number": "3",
        "name": "CBOOT",
        "type": "power_out",
        "description": "Bootstrap capacitor connection for the high-side driver; connect a high-quality 470-nF capacitor from CBOOT to SW."
      },
      {
        "number": "4",
        "name": "VCC",
        "type": "power_out",
        "description": "Internal bias supply output for bypassing to AGND; do not connect an external load and never short this pin to ground during operation."
      },
      {
        "number": "5",
        "name": "BIAS",
        "type": "power_in",
        "description": "Optional internal LDO supply input; TI recommends tying to VOUT for 3.3 V ≤ VOUT ≤ 28 V, tie to ground when not in use (VOUT < 3.3 V), and do not float."
      },
      {
        "number": "6",
        "name": "SYNC",
        "type": "input",
        "description": "Clock input to synchronize switching to an external clock; use proper high-speed termination, connect to ground if not used, and do not float."
      },
      {
        "number": "7",
        "name": "RT",
        "type": "passive",
        "description": "Connect resistor RT from this pin to AGND to program the switching frequency; leave floating for the 500-kHz default."
      },
      {
        "number": "8",
        "name": "PGOOD",
        "type": "output",
        "description": "Open-drain power-good flag output; use a 10-kΩ to 100-kΩ pullup to a logic rail or DC voltage no higher than 12 V."
      },
      {
        "number": "9",
        "name": "FB",
        "type": "input",
        "description": "Feedback sense input connected to the feedback divider midpoint to set VOUT; do not short this pin to ground during operation."
      },
      {
        "number": "10",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground pin, the ground reference for internal references and logic; connect to system ground."
      },
      {
        "number": "11",
        "name": "SS/TRK",
        "type": "input",
        "description": "Soft-start control pin; leave floating for internal soft-start slew rate, connect a capacitor to extend soft-start time, or connect an external voltage ramp for tracking."
      },
      {
        "number": "12",
        "name": "EN",
        "type": "input",
        "description": "Enable input: high = ON and low = OFF; connect to VIN, a resistor divider, or an external voltage or logic source and do not float."
      },
      {
        "number": "13",
        "name": "VIN",
        "type": "power_in",
        "description": "Supply input to the internal LDO and high-side power FET; place the high-frequency bypass CIN as close as possible to VIN and PGND."
      },
      {
        "number": "14",
        "name": "VIN",
        "type": "power_in",
        "description": "Supply input to the internal LDO and high-side power FET; place the high-frequency bypass CIN as close as possible to VIN and PGND."
      },
      {
        "number": "15",
        "name": "PGND",
        "type": "power_in",
        "description": "Power ground pin connected internally to the low-side power FET; connect to system ground, PAD, AGND, and the ground pins of CIN and COUT."
      },
      {
        "number": "16",
        "name": "PGND",
        "type": "power_in",
        "description": "Power ground pin connected internally to the low-side power FET; connect to system ground, PAD, AGND, and the ground pins of CIN and COUT."
      },
      {
        "number": "17",
        "name": "PAD",
        "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 thermal pad is not a numbered lead; it is printed as 'PAD' in the pin table and figure, so it is; The datasheet gives only P (power), G (ground), A (analog) and I/O codes, not KiCad ERC classes. Typ; The pin table is shared by the LM46000-Q1 and LM46000A-Q1 variants on this datasheet. The ordering t",
          "exposed pad 17 added from the footprint",
          "dropped thermal pad ['EP'] absent from footprint"
        ],
        "pages_sent": 7,
        "cost_usd": 0.0532,
        "at": "2026-10-11T16:58:07"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/lm46000-q1",
        "pages": 51,
        "sha256": "a13bf07fe8ea5724",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 17,
        "described": 17,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
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        "extents_mm": [
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        "sha256": "7982746831c0bd23f4690608869ad67776faae5c762fb0376666126a3998921b",
        "checked": "2026-10-11",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "HTSSOP-16-EP",
      "Category": "Power Supply Chip",
      "Pins": "17"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "a13bf07fe8ea5724",
      "rows": [
        {
          "name": "VIN to PGND",
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        {
          "name": "EN to PGND",
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        {
          "name": "FB, RT, SS/TRK to AGND",
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        {
          "name": "PGOOD to AGND",
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        {
          "name": "SYNC to AGND",
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        {
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        {
          "name": "AGND to PGND",
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        {
          "name": "SW to PGND",
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        {
          "name": "SW to PGND less than 10-ns transients",
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        {
          "name": "CBOOT to SW",
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          "min": -0.3,
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        {
          "name": "VCC to AGND",
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        },
        {
          "name": "Storage temperature range",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
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        },
        {
          "name": "VIN to PGND",
          "symbol": "",
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          "min": 3.5,
          "typ": null,
          "max": 60,
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        {
          "name": "EN",
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          "typ": null,
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        {
          "name": "FB",
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        {
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        {
          "name": "BIAS input not used",
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        {
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          "name": "AGND to PGND",
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        },
        {
          "name": "Output voltage",
          "symbol": "VOUT",
          "kind": "recommended_operating",
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          "min": 1,
          "typ": null,
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        {
          "name": "Output current",
          "symbol": "IOUT",
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          "min": 0,
          "typ": null,
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        {
          "name": "Operating junction temperature range",
          "symbol": "TJ",
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        {
          "name": "ISHDN Shutdown quiescent current",
          "symbol": "ISHDN",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 2.3,
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          "conditions": "VEN = 0 V",
          "source_page": 5,
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        },
        {
          "name": "Operating quiescent current (non-switching) from VIN",
          "symbol": "IQ-NONSW",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 7,
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          "conditions": "VEN = 3.3 V; VFB = 1.5 V; VBIAS = 3.4 V external",
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        },
        {
          "name": "Operating quiescent current (non-switching) from external VBIAS",
          "symbol": "IBIAS-NONSW",
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          "unit": "µA",
          "min": null,
          "typ": 85,
          "max": 140,
          "conditions": "VEN = 3.3 V; VFB = 1.5 V; VBIAS = 3.4 V external",
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        {
          "name": "Enable input leakage current",
          "symbol": "ILKG-EN",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 0.8,
          "max": 1.75,
          "conditions": "VEN = 3.3 V",
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        {
          "name": "Precision enable level for switching and regulator output VOUT (rising)",
          "symbol": "VEN-VOUT-H",
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          "unit": "V",
          "min": 2,
          "typ": 2.1,
          "max": 2.42,
          "conditions": "VENABLE high level",
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        },
        {
          "name": "Internal LDO input change over threshold to BIAS (VBIAS rising threshold)",
          "symbol": "VBIAS-ON",
          "kind": "electrical",
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          "min": 2.96,
          "typ": null,
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        {
          "name": "Feedback voltage, TJ = 25°C",
          "symbol": "VFB",
          "kind": "electrical",
          "unit": "V",
          "min": 1.009,
          "typ": 1.016,
          "max": 1.023,
          "conditions": "TJ = 25°C",
          "source_page": 6,
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        {
          "name": "Feedback voltage, TJ = –40°C to 125°C",
          "symbol": "VFB",
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          "typ": 1.016,
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          "conditions": "TJ = –40°C to 125°C",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Input leakage current at FB pin",
          "symbol": "ILKG-FB",
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          "max": 65,
          "conditions": "FB = 1.016 V",
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        {
          "name": "Peak inductor current limit",
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          "typ": 1.35,
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        {
          "name": "Valley inductor current limit",
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          "kind": "electrical",
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        {
          "name": "Soft-start charge current",
          "symbol": "ISSC",
          "kind": "electrical",
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          "max": 2.85,
          "conditions": "",
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        },
        {
          "name": "Power-good flag overvoltage tripping threshold (% of FB voltage)",
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          "unit": "%",
          "min": 110,
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          "max": 113,
          "conditions": "",
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        {
          "name": "Power-good flag undervoltage tripping threshold (% of FB voltage)",
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          "kind": "electrical",
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          "conditions": "",
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        {
          "name": "PGOOD pin pulldown resistance when power bad",
          "symbol": "RPGOOD",
          "kind": "electrical",
          "unit": "Ω",
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          "typ": null,
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          "conditions": "LM46000A-Q1: VEN = 3.3 V",
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          "name": "Minimum high side MOSFET ON-time",
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          "typ": 125,
          "max": 165,
          "conditions": "",
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        {
          "name": "Minimum high side MOSFET OFF-time",
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          "kind": "electrical",
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          "typ": 200,
          "max": 250,
          "conditions": "",
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        {
          "name": "Oscillator default frequency",
          "symbol": "FOSC-DEFAULT",
          "kind": "electrical",
          "unit": "kHz",
          "min": 445,
          "typ": 500,
          "max": 570,
          "conditions": "RT pin open circuit",
          "source_page": 7,
          "source": "datasheet"
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        {
          "name": "Operating junction temperature range thermal resistance, junction-to-ambient (PWP HTSSOP 16 pins)",
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          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 39.9,
          "max": null,
          "conditions": "JESD 51-7, 4-layer board, 1 W",
          "source_page": 5,
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        },
        {
          "name": "Junction-to-case (top) thermal resistance",
          "symbol": "RθJC(top)",
          "kind": "thermal",
          "unit": "°C/W",
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          "typ": 26.9,
          "max": null,
          "conditions": "",
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        {
          "name": "Junction-to-board thermal resistance",
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          "kind": "thermal",
          "unit": "°C/W",
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          "max": null,
          "conditions": "",
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        },
        {
          "name": "Junction-to-top characterization parameter",
          "symbol": "ψJT",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 0.8,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Junction-to-board characterization parameter",
          "symbol": "ψJB",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 21.5,
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