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TPS74301RGWR
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Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, VQFN-20-EP(5x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+58@@ -0,0 +1,58 @@+# TPS74301RGWR++**Texas Instruments** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · VQFN-20-EP(5x5)++TPS74301RGWR from Texas Instruments, in a VQFN-20-EP(5x5). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | OUT | power_out | Regulated output voltage; the new-silicon device requires an output capacitor of 2.2 µF or greater for stability, and the adjustable output range is 0.8 V to 3.6 V. |+| 2 | NC | unconnected | No internal connection; may be left floating or connected to GND for better thermal contact to the top plane. |+| 3 | NC | unconnected | No internal connection; may be left floating or connected to GND for better thermal contact to the top plane. |+| 4 | NC | unconnected | No internal connection; may be left floating or connected to GND for better thermal contact to the top plane. |+| 5 | IN | power_in | Unregulated input voltage; the recommended range is VOUT + VDO(VIN) to 5.5 V, and at least 1 µF of input capacitance is required. |+| 6 | IN | power_in | Unregulated input voltage; the recommended range is VOUT + VDO(VIN) to 5.5 V, and at least 1 µF of input capacitance is required. |+| 7 | IN | power_in | Unregulated input voltage; the recommended range is VOUT + VDO(VIN) to 5.5 V, and at least 1 µF of input capacitance is required. |+| 8 | IN | power_in | Unregulated input voltage; the recommended range is VOUT + VDO(VIN) to 5.5 V, and at least 1 µF of input capacitance is required. |+| 9 | PG | output | Open-drain, active-high power-good output that indicates VOUT status; it needs a 10 kΩ to 1 MΩ pull-up to a supply of up to 5.5 V, and it may be left floating if output monitoring is not needed. |+| 10 | BIAS | input | Bias input voltage for the error amplifier, reference and internal control circuitry; the recommended range is VOUT + VDO(VBIAS) to 5.5 V, with a 0.1 µF to 1 µF bias capacitor (CBIAS). |+| 11 | EN | input | Enable pin, active high: driving it above 1.1 V enables the regulator, below 0.4 V puts it in shutdown, and it must not be left floating (maximum 5.5 V). |+| 12 | GND | power_in | Ground reference for the device. |+| 13 | NC | unconnected | No internal connection; may be left floating or connected to GND for better thermal contact to the top plane. |+| 14 | NC | unconnected | No internal connection; may be left floating or connected to GND for better thermal contact to the top plane. |+| 15 | TRACK | input | Tracking pin: connect to the center tap of a resistor divider from an external supply so that OUT tracks it; the FB pin is regulated to TRACK while TRACK is below 0.8 V. |+| 16 | FB | input | Feedback connection to the center tap of the external resistor divider that sets the output voltage (0.8 V reference); it must not be left floating. |+| 17 | NC | unconnected | No internal connection; may be left floating or connected to GND for better thermal contact to the top plane. |+| 18 | OUT | power_out | Regulated output voltage; the new-silicon device requires an output capacitor of 2.2 µF or greater for stability, and the adjustable output range is 0.8 V to 3.6 V. |+| 19 | OUT | power_out | Regulated output voltage; the new-silicon device requires an output capacitor of 2.2 µF or greater for stability, and the adjustable output range is 0.8 V to 3.6 V. |+| 20 | OUT | power_out | Regulated output voltage; the new-silicon device requires an output capacitor of 2.2 µF or greater for stability, and the adjustable output range is 0.8 V to 3.6 V. |+| 21 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | VQFN-20-EP(5x5) |+| Category | Power Management (PMIC) |+| Pins | 21 |++## CAD (KiCad official)++- Symbol: `TPS74301RGWR`+- Footprint: `Package_DFN_QFN:QFN-20-1EP_5x5mm_P0.65mm_EP3.35x3.35mm`+- 3D model: VQFN-20-EP(5x5) (KiCad packages3D, STEP)+- 3D model files: `tps74301rgwr-etched.step` / `tps74301rgwr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tps74301rgwr.step` / `tps74301rgwr.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/tps74301) (45 pp, sha256 `de9667272db70c1d`, retrieved 2026-10-08, tier: lcsc)+- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/tps74301rgwr-datasheet.pdf)
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the new-silicon device requires an output capacitor of 2.2 µF or greater for stability, and the adjustable output range is 0.8 V to 3.6 V."+ },+ {+ "number": "2",+ "name": "NC",+ "type": "unconnected",+ "description": "No internal connection; may be left floating or connected to GND for better thermal contact to the top plane."+ },+ {+ "number": "3",+ "name": "NC",+ "type": "unconnected",+ "description": "No internal connection; may be left floating or connected to GND for better thermal contact to the top plane."+ },+ {+ "number": "4",+ "name": "NC",+ "type": "unconnected",+ "description": "No internal connection; may be left floating or connected to GND for better thermal contact to the top plane."+ },+ {+ "number": "5",+ "name": "IN",+ "type": "power_in",+ "description": "Unregulated input voltage; the recommended range is VOUT + VDO(VIN) to 5.5 V, and at least 1 µF of input capacitance is required."+ },+ {+ "number": "6",+ "name": "IN",+ "type": "power_in",+ "description": "Unregulated input voltage; the recommended range is VOUT + VDO(VIN) to 5.5 V, and at least 1 µF of input capacitance is required."+ },+ {+ "number": "7",+ "name": "IN",+ "type": "power_in",+ "description": "Unregulated input voltage; the recommended range is VOUT + VDO(VIN) to 5.5 V, and at least 1 µF of input capacitance is required."+ },+ {+ "number": "8",+ "name": "IN",+ "type": "power_in",+ "description": "Unregulated input voltage; the recommended range is VOUT + VDO(VIN) to 5.5 V, and at least 1 µF of input capacitance is required."+ },+ {+ "number": "9",+ "name": "PG",+ "type": "output",+ "description": "Open-drain, active-high power-good output that indicates VOUT status; it needs a 10 kΩ to 1 MΩ pull-up to a supply of up to 5.5 V, and it may be left floating if output monitoring is not needed."+ },+ {+ "number": "10",+ "name": "BIAS",+ "type": "input",+ "description": "Bias input voltage for the error amplifier, reference and internal control circuitry; the recommended range is VOUT + VDO(VBIAS) to 5.5 V, with a 0.1 µF to 1 µF bias capacitor (CBIAS)."+ },+ {+ "number": "11",+ "name": "EN",+ "type": "input",+ "description": "Enable pin, active high: driving it above 1.1 V enables the regulator, below 0.4 V puts it in shutdown, and it must not be left floating (maximum 5.5 V)."+ },+ {+ "number": "12",+ "name": "GND",+ "type": "power_in",+ "description": "Ground reference for the device."+ },+ {+ "number": "13",+ "name": "NC",+ "type": "unconnected",+ "description": "No internal connection; may be left floating or connected to GND for better thermal contact to the top plane."+ },+ {+ "number": "14",+ "name": "NC",+ "type": "unconnected",+ "description": "No internal connection; may be left floating or connected to GND for better thermal contact to the top plane."+ },+ {+ "number": "15",+ "name": "TRACK",+ "type": "input",+ "description": "Tracking pin: connect to the center tap of a resistor divider from an external supply so that OUT tracks it; the FB pin is regulated to TRACK while TRACK is below 0.8 V."+ },+ {+ "number": "16",+ "name": "FB",+ "type": "input",+ "description": "Feedback connection to the center tap of the external resistor divider that sets the output voltage (0.8 V reference); it must not be left floating."+ },+ {+ "number": "17",+ "name": "NC",+ "type": "unconnected",+ "description": "No internal connection; may be left floating or connected to GND for better thermal contact to the top plane."+ },+ {+ "number": "18",+ "name": "OUT",+ "type": "power_out",+ "description": "Regulated output voltage; the new-silicon device requires an output capacitor of 2.2 µF or greater for stability, and the adjustable output range is 0.8 V to 3.6 V."+ },+ {+ "number": "19",+ "name": "OUT",+ "type": "power_out",+ "description": "Regulated output voltage; the new-silicon device requires an output capacitor of 2.2 µF or greater for stability, and the adjustable output range is 0.8 V to 3.6 V."+ },+ {+ "number": "20",+ "name": "OUT",+ "type": "power_out",+ "description": "Regulated output voltage; the new-silicon device requires an output capacitor of 2.2 µF or greater for stability, and the adjustable output range is 0.8 V to 3.6 V."+ },+ {+ "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 exposed thermal pad (PAD/TAB) is listed in Table 4-1 as 'must be soldered to a ground plane' but; Pin types are mapped from the datasheet's I/O/G classes to KiCad ERC classes. IN and OUT were mapped; NC pins 2-4, 13, 14 and 17 are listed as unconnected; the datasheet allows them to float or tie to G",+ "exposed pad 21 added from the footprint"+ ],+ "pages_sent": 30,+ "cost_usd": 0.142,+ "at": "2026-10-08T18:45:57"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/tps74301",+ "pages": 45,+ "sha256": "de9667272db70c1d",+ "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"+ },+ "models_3d": [+ {+ "file": "tps74301rgwr.step",+ "role": "plain",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 5,+ 5,+ 0.77+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "9466f19e7a94c1920e0c82ac10746517bca0b846bd3c01a7053914bd9856799f",+ "checked": "2026-10-08",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ },+ {+ "file": "tps74301rgwr-etched.step",+ "role": "eda",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 5,+ 5,+ 0.77+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "71bd98c07fbc6526fcc02d74edfd27215c7f05940c0e99265cfbc478049afb07",+ "checked": "2026-10-08",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ }+ ]+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}