TPS54116QRTWTQ1

{
  "slug": "tps54116qrtwtq1",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Power Management Specialized - PMIC, WQFN-24-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power supply chip",
    "tps54116qrtwtq1",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
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    "path": "docs/hero.png"
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    "tps54116qrtwtq1.lbr",
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    "docs/tps54116qrtwtq1-datasheet.pdf",
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  "component": {
    "mpn": "TPS54116QRTWTQ1",
    "manufacturer": "Texas Instruments",
    "package": "WQFN-24-EP(4x4)",
    "pin_count": 25,
    "category": "Power Supply Chip",
    "subcategory": "Power Management Specialized - PMIC",
    "datasheet": "https://www.ti.com/cn/lit/gpn/tps54116-q1",
    "parts": {
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      "lbr": "tps54116qrtwtq1.lbr"
    },
    "distributor_links": {
      "lcsc": "C2866602",
      "digikey": "296-44743-2-ND",
      "mouser": "595-TPS54116QRTWTQ1"
    },
    "distributor_check": {
      "checked_at": "2026-10-23T09:02:07Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-44743-2-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-TPS54116QRTWTQ1",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "SW",
        "type": "output",
        "description": "Switching node of the buck converter."
      },
      {
        "number": "2",
        "name": "BOOT",
        "type": "passive",
        "description": "Bootstrap capacitor node for the high-side MOSFET gate driver; connect the bootstrap capacitor from this pin to the SW pin."
      },
      {
        "number": "3",
        "name": "AVIN",
        "type": "power_in",
        "description": "Input supply to the IC powering the control circuits of both the buck converter and DDR termination regulator; connect to a supply between 2.95 V and 6 V."
      },
      {
        "number": "4",
        "name": "ENSW",
        "type": "input",
        "description": "Buck converter enable with internal pull-up current source; floating enables the IC, below 1.17 V enters standby, below 0.4 V enters shutdown, and two resistors can set adjustable UVLO."
      },
      {
        "number": "5",
        "name": "ENLDO",
        "type": "input",
        "description": "VTT LDO enable with internal pull-up current source; floating enables the IC, below 1.17 V enters standby, below 0.4 V enters shutdown, and two resistors can set adjustable UVLO."
      },
      {
        "number": "6",
        "name": "PGOOD",
        "type": "output",
        "description": "Open-drain power good indicator for the buck regulator; a 10-kΩ pull-up to AVIN or an external logic supply is recommended."
      },
      {
        "number": "7",
        "name": "VDDQSNS",
        "type": "input",
        "description": "VDDQ sense input used to generate the VDDQ/2 reference for VTTREF."
      },
      {
        "number": "8",
        "name": "LDOIN",
        "type": "power_in",
        "description": "Power supply input for the VTT LDO, connected to VDDQ in the typical application or a lower voltage in split-rail configuration to reduce power dissipation."
      },
      {
        "number": "9",
        "name": "VTT",
        "type": "power_out",
        "description": "1-A LDO output; connect 2 x 10-µF ceramic capacitors to VTTGND for stability."
      },
      {
        "number": "10",
        "name": "VTTGND",
        "type": "power_in",
        "description": "Power ground for the VTT LDO."
      },
      {
        "number": "11",
        "name": "VTTSNS",
        "type": "input",
        "description": "VTT LDO voltage feedback."
      },
      {
        "number": "12",
        "name": "VTTREF",
        "type": "power_out",
        "description": "Buffered low-noise VTT reference output; connect a 0.22 µF or larger ceramic capacitor to AGND for stability."
      },
      {
        "number": "13",
        "name": "ILIM",
        "type": "input",
        "description": "Programmable current limit pin; the high-side MOSFET peak current limit is set by an external resistor to AGND."
      },
      {
        "number": "14",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog signal ground of the IC; connect to PGND at a single point on the PCB, typically at the thermal pad."
      },
      {
        "number": "15",
        "name": "FB",
        "type": "input",
        "description": "Error amplifier inverting input for buck voltage regulation; connect to the center of a resistor divider from the output voltage to AGND."
      },
      {
        "number": "16",
        "name": "COMP",
        "type": "passive",
        "description": "Output of the internal transconductance error amplifier for the buck converter; the loop compensation network is connected from this pin to AGND."
      },
      {
        "number": "17",
        "name": "SS/TRK",
        "type": "passive",
        "description": "Soft-start programming pin; a capacitor to AGND sets the soft-start time, and its voltage overrides the internal reference for tracking and sequencing."
      },
      {
        "number": "18",
        "name": "RT/SYNC",
        "type": "input",
        "description": "Resistor timing and external clock pin; a resistor to AGND sets the switching frequency, and pulling above the upper threshold switches it to a synchronization clock input."
      },
      {
        "number": "19",
        "name": "PGND",
        "type": "power_in",
        "description": "Power ground of the buck regulator; connect to AGND at a single point on the PCB, typically at the thermal pad."
      },
      {
        "number": "20",
        "name": "PGND",
        "type": "power_in",
        "description": "Power ground of the buck regulator; connect to AGND at a single point on the PCB, typically at the thermal pad."
      },
      {
        "number": "21",
        "name": "PVIN",
        "type": "power_in",
        "description": "Input supply for the power MOSFETs; connect to a supply between 2.95 V and 6 V."
      },
      {
        "number": "22",
        "name": "PVIN",
        "type": "power_in",
        "description": "Input supply for the power MOSFETs; connect to a supply between 2.95 V and 6 V."
      },
      {
        "number": "23",
        "name": "SW",
        "type": "output",
        "description": "Switching node of the buck converter."
      },
      {
        "number": "24",
        "name": "SW",
        "type": "output",
        "description": "Switching node of the buck converter."
      },
      {
        "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-sonnet-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Datasheet pin table gives no explicit I/O type for several pins (e.g., BOOT, COMP, SS/TRK, PAD); typ; The datasheet lists AGND and VTTGND as 'I' in the I/O column; they were mapped to power_in as ground"
        ],
        "pages_sent": 8,
        "cost_usd": 0.118,
        "at": "2026-10-23T09:01:37"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/tps54116-q1",
        "pages": 41,
        "sha256": "b4a1a1be1bccb59c",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 25,
        "described": 25,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
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}