TPS7A8400ARGRT

{
  "schema_version": 1,
  "type": "component",
  "slug": "tps7a8400argrt",
  "title": "TPS7A8400ARGRT",
  "brief": "Texas Instruments Linear Voltage Regulators (LDO), VQFN-20-EP(3.5x3.5). 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",
    "tps7a8400argrt",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "TPS7A8400ARGRT",
    "manufacturer": "Texas Instruments",
    "package": "VQFN-20-EP(3.5x3.5)",
    "pin_count": 21,
    "category": "Power Supply Chip",
    "subcategory": "Linear Voltage Regulators (LDO)",
    "datasheet": "https://www.ti.com/lit/ds/symlink/tps7a8400argrt.pdf",
    "parts": {
      "symbol": "tps7a8400argrt.kicad_sym",
      "footprint": "tps7a8400argrt.kicad_mod",
      "model_3d": "tps7a8400argrt-hero.glb",
      "model_3d_plain": "tps7a8400argrt-etched.glb",
      "model_3d_step": "tps7a8400argrt-etched.step",
      "model_3d_step_plain": "tps7a8400argrt.step",
      "lbr": "tps7a8400argrt.lbr"
    },
    "distributor_links": {
      "lcsc": "C2863348",
      "digikey": "296-46932-2-ND",
      "mouser": "595-TPS7A8400ARGRT"
    },
    "distributor_check": {
      "checked_at": "2026-10-23T12:35:47Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-46932-2-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-TPS7A8400ARGRT",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "OUT",
        "type": "power_out",
        "description": "Regulated output pin; requires a 47-µF or larger ceramic capacitor (25 µF capacitance or greater) to ground for stability, placed as close as possible."
      },
      {
        "number": "2",
        "name": "SNS",
        "type": "input",
        "description": "Output voltage sense input connecting the internal R1 resistor to the output; connect to the load side only if ANY-OUT is used, otherwise leave floating."
      },
      {
        "number": "3",
        "name": "FB",
        "type": "input",
        "description": "Feedback pin connected to the error amplifier; a 10-nF feed-forward capacitor from FB to OUT is recommended but may disrupt Power-Good functionality."
      },
      {
        "number": "4",
        "name": "PG",
        "type": "output",
        "description": "Active-high open-drain power-good output that indicates when the output voltage reaches VIT(PG) of the target; a feed-forward capacitor may disrupt PG functionality."
      },
      {
        "number": "5",
        "name": "50mV",
        "type": "input",
        "description": "ANY-OUT 50-mV voltage setting pin; connect to ground, SNS, or leave floating when not in use."
      },
      {
        "number": "6",
        "name": "100mV",
        "type": "input",
        "description": "ANY-OUT 100-mV voltage setting pin; connect to ground, SNS, or leave floating when not in use."
      },
      {
        "number": "7",
        "name": "200mV",
        "type": "input",
        "description": "ANY-OUT 200-mV voltage setting pin; connect to ground, SNS, or leave floating when not in use."
      },
      {
        "number": "8",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin; must be connected to ground, the thermal pad, and the other GND pin with a low-impedance connection."
      },
      {
        "number": "9",
        "name": "400mV",
        "type": "input",
        "description": "ANY-OUT 400-mV voltage setting pin; connect to ground, SNS, or leave floating when not in use."
      },
      {
        "number": "10",
        "name": "800mV",
        "type": "input",
        "description": "ANY-OUT 800-mV voltage setting pin; connect to ground, SNS, or leave floating when not in use."
      },
      {
        "number": "11",
        "name": "1.6V",
        "type": "input",
        "description": "ANY-OUT 1.6-V voltage setting pin; connect to ground, SNS, or leave floating when not in use."
      },
      {
        "number": "12",
        "name": "BIAS",
        "type": "power_in",
        "description": "BIAS supply input (3.0 V to 6.5 V) enabling low-input, low-output operation and improving performance for VIN ≤ 2.2 V; needs a 1-µF capacitor to ground, and is left floating or tied to ground if unused."
      },
      {
        "number": "13",
        "name": "NR/SS",
        "type": "passive",
        "description": "Noise-reduction and soft-start pin; an external capacitor to ground (10 nF or larger recommended) reduces reference noise and enables soft start."
      },
      {
        "number": "14",
        "name": "EN",
        "type": "input",
        "description": "Enable pin; logic high enables the device and logic low disables it, and if unused it must be connected to IN or BIAS."
      },
      {
        "number": "15",
        "name": "IN",
        "type": "power_in",
        "description": "Input supply voltage pin (1.1 V to 6.5 V); requires a 10-µF or larger ceramic capacitor (5 µF capacitance or greater) to ground placed close to the pin."
      },
      {
        "number": "16",
        "name": "IN",
        "type": "power_in",
        "description": "Input supply voltage pin (1.1 V to 6.5 V); requires a 10-µF or larger ceramic capacitor (5 µF capacitance or greater) to ground placed close to the pin."
      },
      {
        "number": "17",
        "name": "IN",
        "type": "power_in",
        "description": "Input supply voltage pin (1.1 V to 6.5 V); requires a 10-µF or larger ceramic capacitor (5 µF capacitance or greater) to ground placed close to the pin."
      },
      {
        "number": "18",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin; must be connected to ground, the thermal pad, and the other GND pin with a low-impedance connection."
      },
      {
        "number": "19",
        "name": "OUT",
        "type": "power_out",
        "description": "Regulated output pin; requires a 47-µF or larger ceramic capacitor (25 µF capacitance or greater) to ground for stability, placed as close as possible."
      },
      {
        "number": "20",
        "name": "OUT",
        "type": "power_out",
        "description": "Regulated output pin; requires a 47-µF or larger ceramic capacitor (25 µF capacitance or greater) to ground for stability, placed as close as possible."
      },
      {
        "number": "21",
        "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: The datasheet does not print a number for the thermal pad, so I used 'EP'. Change it to match your f; The datasheet groups IN (15-17) and OUT (1, 19, 20) as ranges or lists. I split each into one entry ; The datasheet's I/O column gives NR/SS no direction ('—'), so I classed it as passive."
        ],
        "pages_sent": 11,
        "cost_usd": 0.1464,
        "at": "2026-10-23T12:35:20"
      },
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/tps7a8400argrt.pdf",
        "pages": 63,
        "sha256": "c7236bbd0f19c107",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 21,
        "described": 21,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "tps7a8400argrt.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          3.52,
          3.52,
          0.9
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "529b8080fff32ff5ff17a059faa4fdef22fb3ab16dac354f797597ce06e06439",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "tps7a8400argrt-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          3.52,
          3.52,
          0.9
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "ba2c060592fe51d44a09fa8628ddab1a05c6da5e6035db5887c07db1bf51c27d",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "VQFN-20-EP(3.5x3.5)",
      "Category": "Power Supply Chip",
      "Pins": "21"
    },
    "appearance": {
      "contacts": {
        "quote": "capacitor, and to the LDO ground pin as close as possible to each other, connected by a wide, component-side, copper surface. The use of vias and long traces to the input and output capacitors is stro",
        "page": 52,
        "doc": "ds.pdf",
        "material": "copper"
      },
      "version": 1,
      "datasheet_sha256": "c7236bbd0f19c107f6c22f15e536eee1bb7f48bafe74dbabbef97ca9c37b1938"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "c7236bbd0f19c107f6c22f15e536eee1bb7f48bafe74dbabbef97ca9c37b1938",
      "rows": [
        {
          "name": "Output voltage accuracy",
          "symbol": "VOUT",
          "kind": "electrical",
          "unit": "%",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "0.8 V ≤ VOUT ≤ 5.15 V, 5 mA ≤ IOUT ≤ 3 A, over VIN",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Output voltage accuracy with BIAS",
          "symbol": "VOUT",
          "kind": "electrical",
          "unit": "%",
          "min": -0.75,
          "typ": null,
          "max": 0.75,
          "conditions": "1.1V ≤ VIN ≤ 2.2 V, 5 mA ≤ IOUT ≤ 3 A, 3.0 V ≤ VBIAS ≤ 6.5 V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Output current limit",
          "symbol": "ILIM",
          "kind": "electrical",
          "unit": "A",
          "min": 3.7,
          "typ": 4.2,
          "max": 4.7,
          "conditions": "VOUT forced at 0.9 × VOUT(nom), VIN = VOUT(nom) + 0.4 V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Dropout voltage",
          "symbol": "VDO",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 155,
          "max": 250,
          "conditions": "VIN = 1.4 V, IOUT = 3 A, VFB = 0.8 V – 3%",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Dropout voltage",
          "symbol": "VDO",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 225,
          "max": 340,
          "conditions": "VIN = 5.4 V, IOUT = 3 A, VFB = 0.8 V – 3%",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Dropout voltage",
          "symbol": "VDO",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 270,
          "max": 450,
          "conditions": "VIN = 5.6 V, IOUT = 3 A, VFB = 0.8 V – 3%",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Dropout voltage",
          "symbol": "VDO",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 110,
          "max": 180,
          "conditions": "VIN = 1.1 V, VBIAS = 5 V, IOUT = 3 A, VFB = 0.8 V – 3%",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "GND pin current",
          "symbol": "IGND",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 3,
          "max": 4,
          "conditions": "VIN = 6.5 V, IOUT = 5mA",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "GND pin current",
          "symbol": "IGND",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 4.3,
          "max": 5.5,
          "conditions": "VIN = 1.4 V, IOUT = 3A",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "GND pin current in shutdown",
          "symbol": "IGND",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 1.2,
          "max": 25,
          "conditions": "Shutdown, PG = open, VIN = 6.5 V, VEN = 0.5 V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "PG pin threshold",
          "symbol": "VIT(PG)",
          "kind": "electrical",
          "unit": "V",
          "min": 82,
          "typ": 88,
          "max": 93,
          "conditions": "For falling VOUT, % x VOUT",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Input supply UVLO with BIAS",
          "symbol": "VUVLO1(IN)",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 1.02,
          "max": 1.085,
          "conditions": "VIN rising with VBIAS = 3.0 V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Input supply UVLO without BIAS",
          "symbol": "VUVLO2(IN)",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 1.31,
          "max": 1.39,
          "conditions": "VIN rising",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Bias supply UVLO",
          "symbol": "VUVLO(BIAS)",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 2.83,
          "max": 2.9,
          "conditions": "VBIAS rising, VIN = 1.1 V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "EN pin current",
          "symbol": "IEN",
          "kind": "electrical",
          "unit": "µA",
          "min": -0.1,
          "typ": null,
          "max": 0.1,
          "conditions": "VIN = 6.5 V, VEN = 0 V and 6.5 V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "BIAS pin current",
          "symbol": "IBIAS",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 2.4,
          "max": 3.5,
          "conditions": "VIN = 1.1 V, VBIAS = 6.5 V, VOUT(nom) = 0.8 V, IOUT = 3 A",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "EN pin low-level input voltage",
          "symbol": "VIL(EN)",
          "kind": "electrical",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": 0.5,
          "conditions": "disable device",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "EN pin high-level input voltage",
          "symbol": "VIH(EN)",
          "kind": "electrical",
          "unit": "V",
          "min": 1.1,
          "typ": null,
          "max": 6.5,
          "conditions": "enable device",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "PG pin low-level output voltage",
          "symbol": "VOL(PG)",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.4,
          "conditions": "VOUT < VIT(PG), IPG = –1 mA (current into device)",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "PG pin leakage current",
          "symbol": "Ilkg(PG)",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "VOUT > VIT(PG), VPG = 6.5 V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "NR/SS pin charging current",
          "symbol": "INR/SS",
          "kind": "electrical",
          "unit": "µA",
          "min": 4,
          "typ": 6.6,
          "max": 9,
          "conditions": "VNR/SS = GND, VIN = 6.5 V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "FB pin leakage current",
          "symbol": "IFB",
          "kind": "electrical",
          "unit": "nA",
          "min": -100,
          "typ": null,
          "max": 100,
          "conditions": "VIN = 6.5 V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Input supply voltage range",
          "symbol": "VIN",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 1.1,
          "typ": null,
          "max": 6.5,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Bias supply voltage range",
          "symbol": "VBIAS",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 3,
          "typ": null,
          "max": 6.5,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Output voltage range",
          "symbol": "VOUT",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 0.8,
          "typ": null,
          "max": 5.15,
          "conditions": "TPS7A8400A",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Output current",
          "symbol": "IOUT",
          "kind": "recommended_operating",
          "unit": "A",
          "min": 0,
          "typ": null,
          "max": 3,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Operating junction temperature",
          "symbol": "TJ",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Input capacitor",
          "symbol": "CIN",
          "kind": "recommended_operating",
          "unit": "µF",
          "min": 10,
          "typ": 47,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Output capacitor",
          "symbol": "COUT",
          "kind": "recommended_operating",
          "unit": "µF",
          "min": 47,
          "typ": null,
          "max": null,
          "conditions": "nominal 47 || 10 || 10",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Bias pin capacitor",
          "symbol": "CBIAS",
          "kind": "recommended_operating",
          "unit": "µF",
          "min": 1,
          "typ": 10,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Power-good pullup resistance",
          "symbol": "RPG",
          "kind": "recommended_operating",
          "unit": "kΩ",
          "min": 10,
          "typ": null,
          "max": 100,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Abs max IN, BIAS, PG, EN voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 7,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Abs max IN, BIAS, PG, EN pulsed",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 7.5,
          "conditions": "5% duty cycle, pulse duration = 200 µs",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Abs max SNS, OUT voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "max VIN + 0.3 (or 7.0 V, whichever is smaller)",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Abs max NR/SS, FB voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 3.6,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Abs max ANY-OUT pins voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "max VOUT + 0.3; 50mV to 1.6V pins",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Abs max PG sink current",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 5,
          "conditions": "sink current into device",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Abs max operating junction temperature",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 150,
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