TPS7A8901RTJT

{
  "slug": "tps7a8901rtjt",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, QFN-20-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "tps7a8901rtjt",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
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    "README.md",
    "tps7a8901rtjt.kicad_sym",
    "tps7a8901rtjt.kicad_mod",
    "tps7a8901rtjt.glb",
    "tps7a8901rtjt.step",
    "tps7a8901rtjt.lbr",
    "docs/hero.png",
    "docs/tps7a8901rtjt-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "tps7a8901rtjt-hero.glb",
    "tps7a8901rtjt-hero.overlay.json"
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  "component": {
    "mpn": "TPS7A8901RTJT",
    "manufacturer": "Texas Instruments",
    "package": "QFN-20-EP(4x4)",
    "pin_count": 21,
    "category": "Power Management (PMIC)",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "https://www.ti.com/cn/lit/gpn/tps7a89",
    "parts": {
      "symbol": "tps7a8901rtjt.kicad_sym",
      "footprint": "tps7a8901rtjt.kicad_mod",
      "model_3d": "tps7a8901rtjt-hero.glb",
      "model_3d_plain": "tps7a8901rtjt.glb",
      "model_3d_step": "tps7a8901rtjt-etched.step",
      "model_3d_step_plain": "tps7a8901rtjt.step",
      "lbr": "tps7a8901rtjt.lbr"
    },
    "distributor_links": {
      "lcsc": "C202216",
      "digikey": "296-46256-2-ND",
      "mouser": "595-TPS7A8901RTJT"
    },
    "distributor_check": {
      "checked_at": "2026-10-08T00:37:54Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-46256-2-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "595-TPS7A8901RTJT",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "IN1",
        "type": "power_in",
        "description": "Input supply pin for LDO 1; a 10 µF or greater input capacitor is required, placed as close to the input as possible."
      },
      {
        "number": "2",
        "name": "IN1",
        "type": "power_in",
        "description": "Input supply pin for LDO 1; a 10 µF or greater input capacitor is required, placed as close to the input as possible."
      },
      {
        "number": "3",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin that must be connected to the thermal pad, to the other GND pins, and to ground with a low-impedance connection."
      },
      {
        "number": "4",
        "name": "IN2",
        "type": "power_in",
        "description": "Input supply pin for LDO 2; a 10 µF or greater input capacitor is required, placed as close to the input as possible."
      },
      {
        "number": "5",
        "name": "IN2",
        "type": "power_in",
        "description": "Input supply pin for LDO 2; a 10 µF or greater input capacitor is required, placed as close to the input as possible."
      },
      {
        "number": "6",
        "name": "EN2",
        "type": "input",
        "description": "Enable pin for channel 2; VEN2 ≥ VIH(EN2) enables the regulator and VEN2 ≤ VIL(EN2) disables it, and it must be connected to IN2 if the enable function is not used."
      },
      {
        "number": "7",
        "name": "NR/SS2",
        "type": "passive",
        "description": "Noise-reduction and soft-start capacitor connection for channel 2; a 10 nF or larger capacitor to GND is recommended, placed as close to the pin as possible."
      },
      {
        "number": "8",
        "name": "SS_CTRL2",
        "type": "input",
        "description": "Soft-start control for channel 2; connect to GND or IN2 to select normal or fast charging of the NR/SS2 capacitor, and to GND if no capacitor is used to avoid output overshoot."
      },
      {
        "number": "9",
        "name": "PG2",
        "type": "output",
        "description": "Open-drain power-good indicator for LDO 2; requires a 10-kΩ to 100-kΩ external pullup resistor and may be left floating or tied to GND if not used."
      },
      {
        "number": "10",
        "name": "FB2",
        "type": "input",
        "description": "Feedback input to the channel 2 error amplifier; a 10 nF feed-forward capacitor to OUT2 is recommended but not required, and it can disrupt PG2 operation."
      },
      {
        "number": "11",
        "name": "OUT2",
        "type": "power_out",
        "description": "Regulated output for LDO 2; requires a 22 µF or larger ceramic capacitor (10 µF or greater effective) to ground placed as close to the output as possible."
      },
      {
        "number": "12",
        "name": "OUT2",
        "type": "power_out",
        "description": "Regulated output for LDO 2; requires a 22 µF or larger ceramic capacitor (10 µF or greater effective) to ground placed as close to the output as possible."
      },
      {
        "number": "13",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin that must be connected to the thermal pad, to the other GND pins, and to ground with a low-impedance connection."
      },
      {
        "number": "14",
        "name": "OUT1",
        "type": "power_out",
        "description": "Regulated output for LDO 1; requires a 22 µF or larger ceramic capacitor (10 µF or greater effective) to ground placed as close to the output as possible."
      },
      {
        "number": "15",
        "name": "OUT1",
        "type": "power_out",
        "description": "Regulated output for LDO 1; requires a 22 µF or larger ceramic capacitor (10 µF or greater effective) to ground placed as close to the output as possible."
      },
      {
        "number": "16",
        "name": "FB1",
        "type": "input",
        "description": "Feedback input to the channel 1 error amplifier; a 10 nF feed-forward capacitor to OUT1 is recommended but not required, and it can disrupt PG1 operation."
      },
      {
        "number": "17",
        "name": "PG1",
        "type": "output",
        "description": "Open-drain power-good indicator for LDO 1; requires a 10-kΩ to 100-kΩ external pullup resistor and may be left floating or tied to GND if not used."
      },
      {
        "number": "18",
        "name": "SS_CTRL1",
        "type": "input",
        "description": "Soft-start control for channel 1; connect to GND or IN1 to select normal or fast charging of the NR/SS1 capacitor, and to GND if no capacitor is used to avoid output overshoot."
      },
      {
        "number": "19",
        "name": "NR/SS1",
        "type": "passive",
        "description": "Noise-reduction and soft-start capacitor connection for channel 1; a 10 nF or larger capacitor to GND is recommended, placed as close to the pin as possible."
      },
      {
        "number": "20",
        "name": "EN1",
        "type": "input",
        "description": "Enable pin for channel 1; VEN1 ≥ VIH(EN1) enables the regulator and VEN1 ≤ VIL(EN1) disables it, and it must be connected to IN1 if the enable function is not used."
      },
      {
        "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-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 part of the QFN-20-EP package but the datasheet does not print a pin number for i; The datasheet lists NR/SSx with I/O type '—' (no direction). Typed as passive because it is a capaci; PGx is an open-drain output with a 10-kΩ to 100-kΩ external pullup; typed as output since the KiCad ",
          "exposed pad 21 added from the footprint"
        ],
        "pages_sent": 12,
        "cost_usd": 0.0814,
        "at": "2026-10-08T00:37:34"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/tps7a89",
        "pages": 50,
        "sha256": "0597c8be312f6b57",
        "source_tier": "lcsc"
      },
      "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"
    },
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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "c9476a1612023de37f27b4972110ab6ac6dc0eaf5ac48957a2e1c497650082a5",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "tps7a8901rtjt-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
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        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "770fbdf9f88bb536fffc9a27cb6c87ec72a7ce7bdcf681a1bb061a70e0e492e3",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}