TPS7A4701

{
  "schema_version": 1,
  "type": "component",
  "slug": "tps7a47",
  "title": "TPS7A4701",
  "brief": "TI ultra-low-noise, high-PSRR LDO, VQFN-20. 36 V in, 1 A, pin-programmable output, 4 uVrms noise. Datasheet-verified.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "power",
    "ldo",
    "low-noise",
    "high-psrr",
    "vqfn-20",
    "texas-instruments"
  ],
  "component": {
    "mpn": "TPS7A4701",
    "manufacturer": "Texas Instruments",
    "package": "VQFN-20",
    "pin_count": 21,
    "category": "Power Management",
    "subcategory": "LDO regulator",
    "datasheet": "https://www.ti.com/lit/ds/symlink/tps7a47.pdf",
    "parts": {
      "symbol": "tps7a47.kicad_sym",
      "footprint": "tps7a47.kicad_mod",
      "model_3d": "tps7a47-etched.glb",
      "model_3d_plain": "tps7a47.glb",
      "model_3d_step": "tps7a47-etched.step",
      "model_3d_step_plain": "tps7a47.step",
      "lbr": "tps7a47.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "OUT",
        "type": "power_out",
        "description": "Regulator output. Tie a ≥10 µF (47 µF ceramic recommended) capacitor from OUT to GND close to the device for stability and best AC performance. Pin 1 and pin 20 are internally connected and must be tied together."
      },
      {
        "number": "2",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection. May be left open or tied to any voltage between GND and IN."
      },
      {
        "number": "3",
        "name": "SENSE/FB",
        "type": "input",
        "description": "Control-loop error amplifier input (TPS7A4701 only). Acts as SENSE when using ANY-OUT programming (tie to OUT at point of load) or as FB when using an external resistor divider for adjustable operation up to 34V."
      },
      {
        "number": "4",
        "name": "6P4V2",
        "type": "input",
        "description": "ANY-OUT output-voltage programming pin. Tie to GND to add 6.4 V to the nominal output voltage. Leave floating if unused. Do not connect to any voltage other than GND."
      },
      {
        "number": "5",
        "name": "6P4V1",
        "type": "input",
        "description": "ANY-OUT output-voltage programming pin. Tie to GND to add 6.4 V to the nominal output voltage. Leave floating if unused. Do not connect to any voltage other than GND."
      },
      {
        "number": "6",
        "name": "3P2V",
        "type": "input",
        "description": "ANY-OUT output-voltage programming pin. Tie to GND to add 3.2 V to the nominal output voltage. Leave floating if unused. Do not connect to any voltage other than GND."
      },
      {
        "number": "7",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground. Internally connected to the thermal pad."
      },
      {
        "number": "8",
        "name": "1P6V",
        "type": "input",
        "description": "ANY-OUT output-voltage programming pin. Tie to GND to add 1.6 V to the nominal output voltage. Leave floating if unused. Do not connect to any voltage other than GND."
      },
      {
        "number": "9",
        "name": "0P8V",
        "type": "input",
        "description": "ANY-OUT output-voltage programming pin. Tie to GND to add 0.8 V to the nominal output voltage. Leave floating if unused. Do not connect to any voltage other than GND."
      },
      {
        "number": "10",
        "name": "0P4V",
        "type": "input",
        "description": "ANY-OUT output-voltage programming pin. Tie to GND to add 0.4 V to the nominal output voltage. Leave floating if unused. Do not connect to any voltage other than GND."
      },
      {
        "number": "11",
        "name": "0P2V",
        "type": "input",
        "description": "ANY-OUT output-voltage programming pin. Tie to GND to add 0.2 V to the nominal output voltage. Leave floating if unused. Do not connect to any voltage other than GND."
      },
      {
        "number": "12",
        "name": "0P1V",
        "type": "input",
        "description": "ANY-OUT output-voltage programming pin. Tie to GND to add 0.1 V to the nominal output voltage. Leave floating if unused. Do not connect to any voltage other than GND."
      },
      {
        "number": "13",
        "name": "EN",
        "type": "input",
        "description": "Enable. Device is enabled when VEN exceeds VEN(HI). Absolute max 36 V to GND. Tie to IN if enable control is not required."
      },
      {
        "number": "14",
        "name": "NR",
        "type": "passive",
        "description": "Noise reduction pin. Connect a ≥10 nF capacitor from NR to GND (1 µF recommended, placed close to the device) to reduce output RMS noise to the 4 µVRMS spec and stabilize the reference."
      },
      {
        "number": "15",
        "name": "IN",
        "type": "power_in",
        "description": "Input supply (+3 V to +36 V). Tie a ≥1 µF capacitor from IN to GND for stability; 10 µF is recommended, placed close to the device. Pins 15 and 16 are internally connected."
      },
      {
        "number": "16",
        "name": "IN",
        "type": "power_in",
        "description": "Input supply (+3 V to +36 V). Tie a ≥1 µF capacitor from IN to GND for stability; 10 µF is recommended. Pins 15 and 16 are internally connected."
      },
      {
        "number": "17",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection. May be left open or tied to any voltage between GND and IN."
      },
      {
        "number": "18",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection. May be left open or tied to any voltage between GND and IN."
      },
      {
        "number": "19",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection. May be left open or tied to any voltage between GND and IN."
      },
      {
        "number": "20",
        "name": "OUT",
        "type": "power_out",
        "description": "Regulator output. Tie a ≥10 µF (47 µF ceramic recommended) capacitor from OUT to GND close to the device. Pin 1 and pin 20 are internally connected and must be tied together."
      },
      {
        "number": "21",
        "name": "GND",
        "type": "power_in",
        "description": "Thermal pad. Internally connected to GND. Solder to a large-area ground plane for proper thermal performance and electrical grounding."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/tps7a47.pdf",
        "pages": 32,
        "sha256": "8ca46a9968923d2e",
        "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": "tps7a47.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          5.0,
          5.0,
          0.8
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "3c818a8f5f9c8858b301208fbc97c6f4839f0019e61020154aa963b62e2d9c76",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "tps7a47-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          5.0,
          5.0,
          0.8
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
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        "sha256": "3ebf5f6a7484d4fd10689c1d8fc6c6135fe046f1e9fb8814eb3cb43f45303b5f",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Type": "Ultra-low-noise LDO",
      "Input": "3-36 V",
      "Output": "1.4-20.5 V (pin-programmable)",
      "Output current": "1 A",
      "Noise": "4.17 uVrms (10 Hz-100 kHz)",
      "PSRR": "High across frequency",
      "Package": "VQFN-20"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "tps7a4701",
    "ultra low noise ldo",
    "high psrr regulator",
    "clean supply for adc"
  ],
  "discovery_pitch": "TI TPS7A4701 ultra-low-noise high-PSRR LDO (VQFN-20) with datasheet-verified pinout, KiCad symbol/footprint/3D, and full provenance.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
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    "tps7a47.step",
    "tps7a47.lbr",
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    "docs/tps7a47-datasheet.pdf",
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  ],
  "variants": [
    {
      "mpn": "TPS7A4701RGWR (VQFN-20)",
      "kind": "packaging"
    },
    {
      "mpn": "TPS7A4700RGWR (fixed-adjust variant)",
      "kind": "unknown"
    }
  ]
}