TPS54116QRTWTQ1

{
  "schema_version": 1,
  "type": "component",
  "slug": "tps54116qrtwtq1",
  "title": "TPS54116QRTWTQ1",
  "brief": "Texas Instruments Power Management Specialized - PMIC, WQFN-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 supply chip",
    "tps54116qrtwtq1",
    "factory-2.0.0",
    "extractor-text"
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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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      "model_3d_step": "tps54116qrtwtq1-etched.step",
      "model_3d_step_plain": "tps54116qrtwtq1.step",
      "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"
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      "mouser": {
        "pn": "595-TPS54116QRTWTQ1",
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    },
    "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": {
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        "primary_model": "claude-sonnet-5-5",
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        "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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  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "WQFN-24-EP(4x4)",
      "Category": "Power Supply Chip",
      "Pins": "25"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
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      "rows": [
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          "name": "Input voltage AVIN, PVIN",
          "symbol": "V(AVIN), V(PVIN)",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2.95,
          "typ": null,
          "max": 6,
          "conditions": "",
          "source_page": 5,
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        },
        {
          "name": "Buck output voltage",
          "symbol": "VOUT",
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          "unit": "V",
          "min": 0.6,
          "typ": null,
          "max": 4.5,
          "conditions": "",
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        },
        {
          "name": "Buck output current",
          "symbol": "IOUT",
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          "unit": "A",
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        {
          "name": "VDDQSNS input voltage",
          "symbol": "V(VDDQSNS)",
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          "min": 1,
          "typ": null,
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        },
        {
          "name": "LDOIN input voltage",
          "symbol": "V(LDOIN)",
          "kind": "recommended_operating",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 3.5,
          "conditions": "min is VTT + VDO",
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        },
        {
          "name": "VTT and VTTREF output voltage",
          "symbol": "V(VTT), V(VTTREF)",
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        {
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        {
          "name": "Abs max BOOT with respect to SW",
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          "min": -0.3,
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        {
          "name": "Abs max LDOIN, VTTSNS, VDDQSNS",
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        },
        {
          "name": "Abs max SW",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.6,
          "typ": null,
          "max": 7,
          "conditions": "",
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        {
          "name": "Abs max SW 10-ns transient",
          "symbol": "",
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          "unit": "V",
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          "conditions": "10-ns transient",
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        {
          "name": "Abs max VTT, VTTREF",
          "symbol": "",
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          "unit": "V",
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        {
          "name": "Abs max RT/SYNC current",
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          "unit": "µA",
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        {
          "name": "Abs max PGOOD current",
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        {
          "name": "Operating junction temperature",
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          "unit": "°C",
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        {
          "name": "Storage temperature",
          "symbol": "Tstg",
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          "unit": "°C",
          "min": -65,
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        {
          "name": "AVIN and PVIN operating",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": 2.95,
          "typ": null,
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          "conditions": "",
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          "source": "datasheet"
        },
        {
          "name": "AVIN internal UVLO threshold",
          "symbol": "",
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          "unit": "V",
          "min": null,
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          "max": 2.8,
          "conditions": "AVIN rising",
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        {
          "name": "AVIN internal UVLO hysteresis",
          "symbol": "",
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        {
          "name": "Iq shutdown",
          "symbol": "Iq",
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          "unit": "µA",
          "min": null,
          "typ": 1,
          "max": 3.5,
          "conditions": "V(ENSW) = V(ENLDO) = 0 V, V(VDDQSNS) = 1.8 V, TJ = 25°C",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Iq operating — LDO and buck enabled",
          "symbol": "Iq",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 650,
          "max": 800,
          "conditions": "V(ENSW) = V(ENLDO) = V(AVIN) = 5 V, V(FB) = 0.7 V, V(VDDQSNS) = 1.8 V, TJ = 25°C",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Iq operating — LDO enabled, buck disabled",
          "symbol": "Iq",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 190,
          "max": 300,
          "conditions": "V(ENLDO) = V(AVIN) = 5 V, V(ENSW) = 0 V, V(VDDQSNS) = 1.8 V, TJ = 25°C",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Iq operating — LDO disabled, buck enabled",
          "symbol": "Iq",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 570,
          "max": 700,
          "conditions": "V(ENSW) = V(AVIN) = 5 V, V(ENLDO) = 0 V, V(FB) = 0.7 V, V(VDDQSNS) = 1.8 V, TJ = 25°C",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Voltage Reference",
          "symbol": "VREF",
          "kind": "electrical",
          "unit": "V",
          "min": 0.594,
          "typ": 0.6,
          "max": 0.606,
          "conditions": "",
          "source_page": 6,
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        },
        {
          "name": "Error Amp transconductance",
          "symbol": "gmEA",
          "kind": "electrical",
          "unit": "µS",
          "min": null,
          "typ": 260,
          "max": 360,
          "conditions": "-2 µA < I(COMP) < 2 µA, V(COMP) = 1 V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "High side switch resistance",
          "symbol": "",
          "kind": "electrical",
          "unit": "mΩ",
          "min": null,
          "typ": 33,
          "max": 66,
          "conditions": "V(BOOT-SW) = 5 V",
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        },
        {
          "name": "High side switch resistance",
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          "kind": "electrical",
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          "min": null,
          "typ": 42,
          "max": 84,
          "conditions": "V(BOOT-SW) = 3.3 V",
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        },
        {
          "name": "Low side switch resistance",
          "symbol": "",
          "kind": "electrical",
          "unit": "mΩ",
          "min": null,
          "typ": 25,
          "max": 50,
          "conditions": "V(PVIN) = 5 V",
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          "source": "datasheet"
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        {
          "name": "Low side switch resistance",
          "symbol": "",
          "kind": "electrical",
          "unit": "mΩ",
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          "typ": 30,
          "max": 60,
          "conditions": "V(PVIN) = 3.3 V",
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          "source": "datasheet"
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        {
          "name": "High-side FET current limit",
          "symbol": "",
          "kind": "electrical",
          "unit": "A",
          "min": 5.2,
          "typ": 6.6,
          "max": 8.2,
          "conditions": "V(PVIN) = 6V, R(ILIM) = 100k",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "High-side FET current limit",
          "symbol": "",
          "kind": "electrical",
          "unit": "A",
          "min": 1.5,
          "typ": 3,
          "max": 3.8,
          "conditions": "V(PVIN) = 6V, R(ILIM) = 200k",
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        },
        {
          "name": "Switching frequency",
          "symbol": "",
          "kind": "electrical",
          "unit": "kHz",
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          "typ": 400,
          "max": 430,
          "conditions": "R(RT/SYNC) = 150 kΩ",
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          "kind": "electrical",
          "unit": "kHz",
          "min": 1910,
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          "conditions": "R(RT/SYNC) = 27 kΩ",
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          "name": "Switching frequency",
          "symbol": "",
          "kind": "electrical",
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          "typ": 420,
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        },
        {
          "name": "SS/TRK charge current",
          "symbol": "ISS",
          "kind": "electrical",
          "unit": "µA",
          "min": 1.5,
          "typ": 2.4,
          "max": 3.2,
          "conditions": "V(SS/TRK) > VSSTHR",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "PGOOD output high leakage",
          "symbol": "",
          "kind": "electrical",
          "unit": "nA",
          "min": null,
          "typ": 5,
          "max": 125,
          "conditions": "V(FB) = VREF, V(PGOOD) = 5.5 V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "PGOOD on resistance",
          "symbol": "",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": 85,
          "max": 170,
          "conditions": "V(AVIN) = 2.95 V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "VDDQSNS input current",
          "symbol": "",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 39,
          "max": 46,
          "conditions": "V(VDDQSNS) = 1.8 V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
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