component
TPS74401RGWT
Public Made by Adomby adom
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.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownTPS74401RGWT
Texas Instruments · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · VQFN-20-EP(5x5)
TPS74401RGWT from Texas Instruments, in a VQFN-20-EP(5x5). Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | OUT | power_out | Regulated output voltage. |
| 2 | NC | unconnected | No connection, can be left floating or connected to GND. |
| 3 | NC | unconnected | No connection, can be left floating or connected to GND. |
| 4 | NC | unconnected | No connection, can be left floating or connected to GND. |
| 5 | IN | power_in | Unregulated input to the device, 1µF or greater input capacitor recommended. |
| 6 | IN | power_in | Unregulated input to the device, 1µF or greater input capacitor recommended. |
| 7 | IN | power_in | Unregulated input to the device, 1µF or greater input capacitor recommended. |
| 8 | IN | power_in | Unregulated input to the device, 1µF or greater input capacitor recommended. |
| 9 | PG | output | Power-good open-drain active-high output indicating VOUT status, use 10kΩ to 1MΩ pullup resistor. |
| 10 | BIAS | power_in | Bias input voltage for error amplifier and control circuits, 1µF or larger capacitor recommended. |
| 11 | EN | input | Enable pin active high, high enables regulator and low disables, must not be left floating. |
| 12 | GND | power_in | Ground reference. |
| 13 | NC | unconnected | No connection, can be left floating or connected to GND. |
| 14 | NC | unconnected | No connection, can be left floating or connected to GND. |
| 15 | SS | passive | Soft-start pin with external capacitor to set ramp time, floating gives 100µs typical. |
| 16 | FB | input | Feedback connection to external resistor divider network that sets output voltage, must not be left floating. |
| 17 | NC | unconnected | No connection, can be left floating or connected to GND. |
| 18 | OUT | power_out | Regulated output voltage. |
| 19 | OUT | power_out | Regulated output voltage. |
| 20 | OUT | power_out | Regulated output voltage. |
| 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:
TPS74401RGWT - 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:
tps74401rgwt-etched.step/tps74401rgwt-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tps74401rgwt.step/tps74401rgwt.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (50 pp, sha256
1e27517f33e62170, retrieved 2026-09-23, 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 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-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).