TPS65400RGZT

{
  "schema_version": 1,
  "type": "component",
  "slug": "tps65400rgzt",
  "title": "TPS65400RGZT",
  "brief": "Texas Instruments DC-DC Converters, VQFN-48-EP(7x7). 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 management (pmic)",
    "tps65400rgzt",
    "factory-2.0.0",
    "extractor-text"
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  "component": {
    "mpn": "TPS65400RGZT",
    "manufacturer": "Texas Instruments",
    "package": "VQFN-48-EP(7x7)",
    "pin_count": 49,
    "category": "Power Management (PMIC)",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://www.ti.com/cn/lit/gpn/tps65400",
    "parts": {
      "symbol": "tps65400rgzt.kicad_sym",
      "footprint": "tps65400rgzt.kicad_mod",
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      "lbr": "tps65400rgzt.lbr"
    },
    "distributor_links": {
      "lcsc": "C201658",
      "digikey": "296-38591-2-ND",
      "mouser": "595-TPS65400RGZT"
    },
    "distributor_check": {
      "checked_at": "2026-10-08T01:07:57Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-38591-2-ND",
        "status": "found"
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      "mouser": {
        "pn": "595-TPS65400RGZT",
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    },
    "pins": [
      {
        "number": "1",
        "name": "CB1",
        "type": "passive",
        "description": "Bootstrap pin for the SW1 high-side MOSFET gate drive; CB1 is referenced to SW1 with a maximum of 7.0 V in recommended operating conditions."
      },
      {
        "number": "2",
        "name": "SW1",
        "type": "power_out",
        "description": "Switch pin for SW1; SW1 is rated for -1.0 V to 18.0 V and supplies up to 4 A."
      },
      {
        "number": "3",
        "name": "SW1",
        "type": "power_out",
        "description": "Switch pin for SW1; SW1 is rated for -1.0 V to 18.0 V and supplies up to 4 A."
      },
      {
        "number": "4",
        "name": "SW1",
        "type": "power_out",
        "description": "Switch pin for SW1; SW1 is rated for -1.0 V to 18.0 V and supplies up to 4 A."
      },
      {
        "number": "5",
        "name": "PVIN1",
        "type": "power_in",
        "description": "Power input for the SW1 buck switching regulator, rated 4.5 V to 18 V."
      },
      {
        "number": "6",
        "name": "PVIN2",
        "type": "power_in",
        "description": "Power input for the SW2 buck switching regulator, rated 4.5 V to 18 V."
      },
      {
        "number": "7",
        "name": "PGND1",
        "type": "power_in",
        "description": "Power ground for the buck converters."
      },
      {
        "number": "8",
        "name": "PGND2",
        "type": "power_in",
        "description": "Power ground for the buck converters."
      },
      {
        "number": "9",
        "name": "SW2",
        "type": "power_out",
        "description": "Switch pin for SW2; SW2 is rated for -1.0 V to 18.0 V and supplies up to 4 A."
      },
      {
        "number": "10",
        "name": "SW2",
        "type": "power_out",
        "description": "Switch pin for SW2; SW2 is rated for -1.0 V to 18.0 V and supplies up to 4 A."
      },
      {
        "number": "11",
        "name": "SW2",
        "type": "power_out",
        "description": "Switch pin for SW2; SW2 is rated for -1.0 V to 18.0 V and supplies up to 4 A."
      },
      {
        "number": "12",
        "name": "CB2",
        "type": "passive",
        "description": "Bootstrap pin for the SW2 high-side MOSFET gate drive; CB2 is referenced to SW2 with a maximum of 7.0 V in recommended operating conditions."
      },
      {
        "number": "13",
        "name": "ENSW2",
        "type": "input",
        "description": "Active-high enable input for SW2 with a 2-µA internal pullup; recommended maximum is 3.3 V."
      },
      {
        "number": "14",
        "name": "VFB2",
        "type": "input",
        "description": "Feedback input for SW2; the recommended range is 0.6 V to 1.87 V."
      },
      {
        "number": "15",
        "name": "COMP2",
        "type": "passive",
        "description": "Compensation pin for the SW2 external compensation network; pulling this pin high to VDDA configures the SW1 controller to control both SW1 and SW2."
      },
      {
        "number": "16",
        "name": "SS2/PG2",
        "type": "bidirectional",
        "description": "Soft-start pin for SW2 by default, with a capacitor setting start-up time; it can be reconfigured through I2C to output the PGOOD2 signal."
      },
      {
        "number": "17",
        "name": "PGOOD",
        "type": "output",
        "description": "Global power-good output that is by default the logical AND of all switcher PGOOD signals, and goes low if all switchers are disabled."
      },
      {
        "number": "18",
        "name": "VDDG",
        "type": "power_out",
        "description": "Supply for the gate drives, to be bypassed locally to PGND; recommended range is -0.3 V to 7.0 V."
      },
      {
        "number": "19",
        "name": "VDDA",
        "type": "power_out",
        "description": "Output of the internal regulator for analog controls; recommended range is -0.3 V to 7.0 V."
      },
      {
        "number": "20",
        "name": "VDDD",
        "type": "power_out",
        "description": "3.3-V output of the internal regulator for digital controls; recommended range is -0.3 V to 3.3 V."
      },
      {
        "number": "21",
        "name": "AGND",
        "type": "power_in",
        "description": "Ground connection for analog controls."
      },
      {
        "number": "22",
        "name": "VIN",
        "type": "power_in",
        "description": "Analog VIN power input for the VDDD, VDDA, and VGATE subregulators; recommended range is -0.3 V to 18.0 V."
      },
      {
        "number": "23",
        "name": "CE",
        "type": "input",
        "description": "Chip enable with an internal pullup that defaults high when floating; pull low with an open-drain output to disable, since push-pull drive is not recommended, and recommended range is -0.3 V to 7.0 V."
      },
      {
        "number": "24",
        "name": "SS3/PG3",
        "type": "bidirectional",
        "description": "Soft-start pin for SW3 by default, with a capacitor setting start-up time; it can be reconfigured through I2C to output the PGOOD3 signal."
      },
      {
        "number": "25",
        "name": "COMP3",
        "type": "passive",
        "description": "Compensation pin for the SW3 external compensation network; recommended range is -0.3 V to 7.0 V."
      },
      {
        "number": "26",
        "name": "VFB3",
        "type": "input",
        "description": "Feedback input for SW3; the recommended range is 0.6 V to 1.87 V."
      },
      {
        "number": "27",
        "name": "ENSW3",
        "type": "input",
        "description": "Active-high enable input for SW3 with a 2-µA internal pullup; recommended maximum is 3.3 V."
      },
      {
        "number": "28",
        "name": "CB3",
        "type": "passive",
        "description": "Bootstrap pin for the SW3 high-side MOSFET gate drive; CB3 is referenced to SW3 with a maximum of 7.0 V in recommended operating conditions."
      },
      {
        "number": "29",
        "name": "SW3",
        "type": "power_out",
        "description": "Switch pin for SW3; the maximum rated output current is 2 A and the pin is rated -1.0 V to 18.0 V."
      },
      {
        "number": "30",
        "name": "PVIN3",
        "type": "power_in",
        "description": "Power input for the SW3 buck switching regulator, rated 4.5 V to 18 V."
      },
      {
        "number": "31",
        "name": "PVIN4",
        "type": "power_in",
        "description": "Power input for the SW4 buck switching regulator, rated 4.5 V to 18 V."
      },
      {
        "number": "32",
        "name": "SW4",
        "type": "power_out",
        "description": "Switch pin for SW4; the maximum rated output current is 2 A and the pin is rated -1.0 V to 18.0 V."
      },
      {
        "number": "33",
        "name": "CB4",
        "type": "passive",
        "description": "Bootstrap pin for the SW4 high-side MOSFET gate drive; CB4 is referenced to SW4 with a maximum of 7.0 V in recommended operating conditions."
      },
      {
        "number": "34",
        "name": "ENSW4",
        "type": "input",
        "description": "Active-high enable input for SW4 with a 2-µA internal pullup; recommended maximum is 3.3 V."
      },
      {
        "number": "35",
        "name": "VFB4",
        "type": "input",
        "description": "Feedback input for SW4; the recommended range is 0.6 V to 1.87 V."
      },
      {
        "number": "36",
        "name": "COMP4",
        "type": "passive",
        "description": "Compensation pin for the SW4 external compensation network; pulling this pin high to VDDA configures the SW3 controller to control both SW3 and SW4."
      },
      {
        "number": "37",
        "name": "SS4/PG4",
        "type": "bidirectional",
        "description": "Soft-start pin for SW4 by default, with a capacitor setting start-up time; it can be reconfigured through I2C to output the PGOOD4 signal."
      },
      {
        "number": "38",
        "name": "I2CADDR",
        "type": "input",
        "description": "Selects the 7-bit I2C address through a resistor to AGND, sampled only at startup during tRESET_DELAY after the rising edge of CE or RST_N; tying it directly to VDDD is recommended if I2C is not used."
      },
      {
        "number": "39",
        "name": "RST_N",
        "type": "input",
        "description": "Digital logic reset; when low, all switchers are disabled, and configuration is reloaded from EEPROM when it is deasserted; recommended range is -0.3 V to 3.3 V."
      },
      {
        "number": "40",
        "name": "RCLOCK_SYNC",
        "type": "passive",
        "description": "Resistor input that sets the primary clock frequency from 275 kHz to 2.2 MHz, or serves as the clock sync input; recommended range is -0.3 V to 3.3 V."
      },
      {
        "number": "41",
        "name": "I2CALERT",
        "type": "output",
        "description": "Open-drain output pulled low for 200 µs when an I2C watchdog timeout is detected on SDA or SCL; recommended range is -0.3 V to 3.3 V."
      },
      {
        "number": "42",
        "name": "SDA",
        "type": "bidirectional",
        "description": "Data input/output pin for the I2C bus; recommended range is -0.3 V to 3.3 V."
      },
      {
        "number": "43",
        "name": "SCL",
        "type": "input",
        "description": "Clock input pin for the I2C bus; recommended range is -0.3 V to 3.3 V."
      },
      {
        "number": "44",
        "name": "CLK_OUT",
        "type": "output",
        "description": "Clock output, open-collector, which requires a pull-up; recommended range is -0.3 V to 3.3 V."
      },
      {
        "number": "45",
        "name": "SS1/PG1",
        "type": "bidirectional",
        "description": "Soft-start pin for SW1 by default, with a capacitor setting start-up time; it can be reconfigured through I2C to output the PGOOD1 signal."
      },
      {
        "number": "46",
        "name": "COMP1",
        "type": "passive",
        "description": "Compensation pin for the SW1 external compensation network; recommended range is -0.3 V to 7.0 V."
      },
      {
        "number": "47",
        "name": "VFB1",
        "type": "input",
        "description": "Feedback input for SW1; the recommended range is 0.6 V to 1.87 V."
      },
      {
        "number": "48",
        "name": "ENSW1/ENSEQ",
        "type": "input",
        "description": "Active-high enable input for SW1 (also the sequence start/stop pin in single-enable mode) with a 2-µA internal pullup; recommended maximum is 3.3 V."
      },
      {
        "number": "49",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
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        "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 printed as 'PGND(thermal pad)' in the Figure 6-1 pin diagram with note A ('Therma; The datasheet lists SW1 on pins 2, 3 and 4 and SW2 on pins 9, 10 and 11 as one name each; each pin i; COMP2 and COMP4 change controller configuration when pulled high to VDDA (SW1 controls SW1+SW2; SW3 ",
          "exposed pad 49 added from the footprint"
        ],
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        "at": "2026-10-08T01:07:37"
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        "pages": 80,
        "sha256": "f5ff79cbf2573561",
        "source_tier": "lcsc"
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "VQFN-48-EP(7x7)",
      "Category": "Power Management (PMIC)",
      "Pins": "49"
    }
  },
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  "discovery_pitch": "TPS65400RGZT (Texas Instruments) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
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