TPS65261-1RHBR

{
  "schema_version": 1,
  "type": "component",
  "slug": "tps65261-1rhbr",
  "title": "TPS65261-1RHBR",
  "brief": "Texas Instruments DC-DC Converters, VQFN-32-EP(5x5). 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)",
    "tps65261-1rhbr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "TPS65261-1RHBR",
    "manufacturer": "Texas Instruments",
    "package": "VQFN-32-EP(5x5)",
    "pin_count": 33,
    "category": "Power Management (PMIC)",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://www.ti.com/lit/ds/symlink/tps65261-1.pdf",
    "parts": {
      "symbol": "tps65261-1rhbr.kicad_sym",
      "footprint": "tps65261-1rhbr.kicad_mod",
      "model_3d": "tps65261-1rhbr-hero.glb",
      "model_3d_plain": "tps65261-1rhbr-etched.glb",
      "model_3d_step": "tps65261-1rhbr-etched.step",
      "model_3d_step_plain": "tps65261-1rhbr.step",
      "lbr": "tps65261-1rhbr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2071798",
      "digikey": "296-40885-2-ND",
      "mouser": "595-TPS65261-1RHBR"
    },
    "distributor_check": {
      "checked_at": "2026-11-06T00:35:08Z",
      "source": "Component Ocean /api/assign-pns",
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        "pn": "296-40885-2-ND",
        "status": "found"
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      "mouser": {
        "pn": "595-TPS65261-1RHBR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "EN3",
        "type": "input",
        "description": "Enable for buck3; float to enable, and a resistor divider can set the buck3 input undervoltage lockout."
      },
      {
        "number": "2",
        "name": "PGOOD",
        "type": "output",
        "description": "Open-drain output that asserts low if any buck output is out of regulation due to thermal shutdown, overcurrent, undervoltage or ENx shutdown."
      },
      {
        "number": "3",
        "name": "RESET",
        "type": "output",
        "description": "Open-drain power failure output signal."
      },
      {
        "number": "4",
        "name": "MODE",
        "type": "input",
        "description": "When high, provides an automatic power-up/power-down sequence according to the states of EN1, EN2 and EN3."
      },
      {
        "number": "5",
        "name": "V7V",
        "type": "power_out",
        "description": "Internal LDO output for the gate driver and internal controller; connect a 10-µF capacitor from this pin to power ground."
      },
      {
        "number": "6",
        "name": "FB2",
        "type": "input",
        "description": "Feedback Kelvin sensing pin for the buck2 output voltage; connect to the buck2 resistor divider."
      },
      {
        "number": "7",
        "name": "COMP2",
        "type": "passive",
        "description": "Error amplifier output and loop compensation pin for buck2; connect a series resistor and capacitor."
      },
      {
        "number": "8",
        "name": "SS2",
        "type": "passive",
        "description": "Soft-start and tracking input for buck2 with an internal 5-µA pullup; soft-start time is set by a capacitor to ground."
      },
      {
        "number": "9",
        "name": "BST2",
        "type": "power_out",
        "description": "Bootstrap supply for the buck2 high-side gate driver; connect a capacitor (recommend 47 nF) from BST2 to LX2."
      },
      {
        "number": "10",
        "name": "LX2",
        "type": "output",
        "description": "Buck2 switching node to the inductor and bootstrap capacitor; swings from a diode drop below ground up to the PVIN2 voltage."
      },
      {
        "number": "11",
        "name": "PGND2",
        "type": "power_in",
        "description": "Power ground for buck2; place as close as practical to the negative terminal of the VIN2 input ceramic capacitor."
      },
      {
        "number": "12",
        "name": "PVIN2",
        "type": "power_in",
        "description": "Input power supply for buck2; place as close as practical to the positive terminal of an input ceramic capacitor (suggested 10 µF)."
      },
      {
        "number": "13",
        "name": "PVIN3",
        "type": "power_in",
        "description": "Input power supply for buck3; place as close as practical to the positive terminal of an input ceramic capacitor (suggested 10 µF)."
      },
      {
        "number": "14",
        "name": "PGND3",
        "type": "power_in",
        "description": "Power ground for buck3; place as close as practical to the negative terminal of the VIN3 input ceramic capacitor."
      },
      {
        "number": "15",
        "name": "LX3",
        "type": "output",
        "description": "Buck3 switching node to the inductor and bootstrap capacitor; swings from a diode drop below ground up to the PVIN3 voltage."
      },
      {
        "number": "16",
        "name": "BST3",
        "type": "power_out",
        "description": "Bootstrap supply for the buck3 high-side gate driver; connect a capacitor (recommend 47 nF) from BST3 to LX3."
      },
      {
        "number": "17",
        "name": "SS3",
        "type": "passive",
        "description": "Soft-start and tracking input for buck3 with an internal 5-µA pullup; soft-start time is set by a capacitor to ground."
      },
      {
        "number": "18",
        "name": "COMP3",
        "type": "passive",
        "description": "Error amplifier output and loop compensation pin for buck3; connect a series resistor and capacitor."
      },
      {
        "number": "19",
        "name": "FB3",
        "type": "input",
        "description": "Feedback Kelvin sensing pin for the buck3 output voltage; connect to the buck3 resistor divider."
      },
      {
        "number": "20",
        "name": "ROSC",
        "type": "passive",
        "description": "Oscillator frequency programming pin; an external resistor sets the switching frequency between 250 kHz and 2 MHz."
      },
      {
        "number": "21",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground common to the buck controllers and analog circuits; route separately from high-current power grounds to the negative terminal of the VIN bypass capacitor."
      },
      {
        "number": "22",
        "name": "FB1",
        "type": "input",
        "description": "Feedback Kelvin sensing pin for the buck1 output voltage; connect to the buck1 resistor divider."
      },
      {
        "number": "23",
        "name": "COMP1",
        "type": "passive",
        "description": "Error amplifier output and loop compensation pin for buck1; connect a series resistor and capacitor."
      },
      {
        "number": "24",
        "name": "SS1",
        "type": "passive",
        "description": "Soft-start and tracking input for buck1 with an internal 5-µA pullup; soft-start time is set by a capacitor to ground."
      },
      {
        "number": "25",
        "name": "BST1",
        "type": "power_out",
        "description": "Bootstrap supply for the buck1 high-side gate driver; connect a capacitor (recommend 47 nF) from BST1 to LX1."
      },
      {
        "number": "26",
        "name": "LX1",
        "type": "output",
        "description": "Buck1 switching node to the inductor and bootstrap capacitor; swings from a diode drop below ground up to the PVIN1 voltage."
      },
      {
        "number": "27",
        "name": "PGND1",
        "type": "power_in",
        "description": "Power ground for buck1; place as close as practical to the negative terminal of the VIN1 input ceramic capacitor."
      },
      {
        "number": "28",
        "name": "PVIN1",
        "type": "power_in",
        "description": "Input power supply for buck1; place as close as practical to the positive terminal of an input ceramic capacitor (suggested 10 µF)."
      },
      {
        "number": "29",
        "name": "VIN",
        "type": "power_in",
        "description": "Buck controller power supply input; recommended operating range is 4.5 V to 18 V."
      },
      {
        "number": "30",
        "name": "VDIV",
        "type": "input",
        "description": "Input voltage threshold for power failure detection of the input voltage."
      },
      {
        "number": "31",
        "name": "EN1",
        "type": "input",
        "description": "Enable for buck1; float to enable, and a resistor divider can set the buck1 input undervoltage lockout."
      },
      {
        "number": "32",
        "name": "EN2",
        "type": "input",
        "description": "Enable for buck2; float to enable, and a resistor divider can set the buck2 input undervoltage lockout."
      },
      {
        "number": "33",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
    ],
    "provenance": {
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        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The excerpt gives the RHB 32-pin VQFN pinout and a thermal pad but does not state the 5x5 mm body si"
        ],
        "pages_sent": 9,
        "cost_usd": 0.0291,
        "at": "2026-11-06T00:34:41"
      },
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/tps65261-1.pdf",
        "pages": 47,
        "sha256": "1f24f24dc34c30ef",
        "source_tier": "mfr"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 33,
        "described": 33,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
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  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "VQFN-32-EP(5x5)",
      "Category": "Power Management (PMIC)",
      "Pins": "33"
    },
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        {
          "name": "PVIN1, PVIN2, PVIN3, VIN input voltage",
          "symbol": "",
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          "min": -0.3,
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        {
          "name": "LX1, LX2, LX3 switch node voltage",
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        {
          "name": "BST1, BST2, BST3 boot voltage",
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        {
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        {
          "name": "FB1, FB2, FB3, COMP1, COMP2, COMP3, SS1, SS2, SS3, ROSC voltage",
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        {
          "name": "Operating junction temperature",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
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          "conditions": "",
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        {
          "name": "Storage temperature range",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -55,
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        {
          "name": "PVIN1, PVIN2, PVIN3, VIN input voltage range",
          "symbol": "",
          "kind": "recommended_operating",
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          "min": 4.5,
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          "max": 18,
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        {
          "name": "LX1, LX2, LX3 switch node voltage",
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          "conditions": "Maximum withstand voltage transient < 20 ns",
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        {
          "name": "BST1, BST2, BST3 boot voltage",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "V",
          "min": -0.1,
          "typ": null,
          "max": 6.8,
          "conditions": "referenced to LX1, LX2, LX3 pins respectively",
          "source_page": 5,
          "source": "datasheet"
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        {
          "name": "EN1, EN2, EN3, PGOOD, V7V, MODE, RESET, VDIV voltage",
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          "kind": "recommended_operating",
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        {
          "name": "Operating ambient temperature",
          "symbol": "TA",
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          "min": -40,
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          "max": 85,
          "conditions": "Operating junction temperature",
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        {
          "name": "Operating junction temperature",
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        {
          "name": "VIN input voltage range",
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        },
        {
          "name": "VIN undervoltage lockout, rising",
          "symbol": "UVLO",
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        {
          "name": "VIN undervoltage lockout, falling",
          "symbol": "UVLO",
          "kind": "electrical",
          "unit": "V",
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          "typ": 3.75,
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          "conditions": "VIN falling",
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        {
          "name": "V7V LDO output voltage",
          "symbol": "V7V",
          "kind": "electrical",
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          "min": 6,
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          "max": 6.6,
          "conditions": "V7V load current = 0 A",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Feedback voltage",
          "symbol": "VFB",
          "kind": "electrical",
          "unit": "V",
          "min": 0.596,
          "typ": 0.6,
          "max": 0.605,
          "conditions": "VCOMP = 1.2 V, TJ = 25°C",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Feedback voltage",
          "symbol": "VFB",
          "kind": "electrical",
          "unit": "V",
          "min": 0.594,
          "typ": 0.6,
          "max": 0.606,
          "conditions": "VCOMP = 1.2 V, TJ = -40°C to 125°C",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Soft start charging current",
          "symbol": "ISSX",
          "kind": "electrical",
          "unit": "µA",
          "min": 4.3,
          "typ": 5,
          "max": 6,
          "conditions": "",
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        },
        {
          "name": "Buck1 peak inductor current limit",
          "symbol": "ILIMIT1",
          "kind": "electrical",
          "unit": "A",
          "min": 4.33,
          "typ": 5.1,
          "max": 6.02,
          "conditions": "",
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        {
          "name": "Buck2/3 peak inductor current limit",
          "symbol": "ILIMIT2/3",
          "kind": "electrical",
          "unit": "A",
          "min": 2.6,
          "typ": 3.1,
          "max": 3.73,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "VDIV threshold",
          "symbol": "VDIVth",
          "kind": "electrical",
          "unit": "V",
          "min": 1.18,
          "typ": 1.23,
          "max": 1.26,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "RESET deglitch on the falling edge",
          "symbol": "Tdeglitch_F",
          "kind": "timing",
          "unit": "cycles",
          "min": 12,
          "typ": 14,
          "max": 16,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Switching frequency",
          "symbol": "FSW",
          "kind": "electrical",
          "unit": "kHz",
          "min": 560,
          "typ": 600,
          "max": 640,
          "conditions": "ROSC = 73.2 kΩ",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Switching frequency range",
          "symbol": "FSW_range",
          "kind": "electrical",
          "unit": "kHz",
          "min": 250,
          "typ": null,
          "max": 2000,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Junction-to-ambient thermal resistance",
          "symbol": "RθJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 31.6,
          "max": null,
          "conditions": "RHB (32 pins)",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Junction-to-case (top) thermal resistance",
          "symbol": "RθJC(top)",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 23.4,
          "max": null,
          "conditions": "RHB (32 pins)",
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        },
        {
          "name": "Junction-to-board thermal resistance",
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          "kind": "thermal",
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          "min": null,
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          "max": null,
          "conditions": "RHB (32 pins)",
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          "source": "datasheet"
        },
        {
          "name": "Junction-to-top characterization parameter",
          "symbol": "ψJT",
          "kind": "thermal",
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          "typ": 0.2,
          "max": null,
          "conditions": "RHB (32 pins)",
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          "source": "datasheet"
        },
        {
          "name": "Junction-to-board characterization parameter",
          "symbol": "ψJB",
          "kind": "thermal",
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          "min": null,
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          "conditions": "RHB (32 pins)",
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        {
          "name": "Junction-to-case (bottom) thermal resistance",
          "symbol": "RθJC(bot)",
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          "unit": "°C/W",
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