component
TPS74401RGRR
Public Made by Adomby adom
Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, VQFN-20(3.5x3.5). 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
markdownTPS74401RGRR
Texas Instruments · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · VQFN-20(3.5x3.5)
TPS74401RGRR from Texas Instruments, in a VQFN-20(3.5x3.5). 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 with output range 0.8V to 3.6V. |
| 2 | NC | unconnected | No connection; pin can be left floating or connected to GND for thermal contact. |
| 3 | NC | unconnected | No connection; pin can be left floating or connected to GND for thermal contact. |
| 4 | NC | unconnected | No connection; pin can be left floating or connected to GND for thermal contact. |
| 5 | IN | power_in | Unregulated input voltage (1.1V to 5.5V); input capacitor ≥1µF recommended. |
| 6 | IN | power_in | Unregulated input voltage (1.1V to 5.5V); input capacitor ≥1µF recommended. |
| 7 | IN | power_in | Unregulated input voltage (1.1V to 5.5V); input capacitor ≥1µF recommended. |
| 8 | IN | power_in | Unregulated input voltage (1.1V to 5.5V); input capacitor ≥1µF recommended. |
| 9 | PG | output | Open-drain power-good active-high output indicating VOUT status; requires 10kΩ to 1MΩ pullup resistor to supply up to 5.5V. |
| 10 | BIAS | power_in | Bias input voltage for error amplifier, reference, and internal control circuits; ≥1µF capacitor recommended (4.7µF if IN connected to BIAS). |
| 11 | EN | input | Enable input; driving high enables regulator, driving low puts device into shutdown mode. |
| 12 | GND | power_in | Ground return path and connection to ground plane for thermal performance. |
| 13 | NC | unconnected | No connection; pin can be left floating or connected to GND for thermal contact. |
| 14 | NC | unconnected | No connection; pin can be left floating or connected to GND for thermal contact. |
| 15 | SS | passive | Soft-start capacitor pin; capacitor connected to ground sets startup time (100µs typical if floating). |
| 16 | FB | input | Feedback input for external resistor divider network that sets the output voltage; must not be left floating. |
| 17 | NC | unconnected | No connection; pin can be left floating or connected to GND for thermal contact. |
| 18 | OUT | power_out | Regulated output voltage with output range 0.8V to 3.6V; output capacitor recommended for performance. |
| 19 | OUT | power_out | Regulated output voltage with output range 0.8V to 3.6V; output capacitor recommended for performance. |
| 20 | OUT | power_out | Regulated output voltage with output range 0.8V to 3.6V; output capacitor recommended for performance. |
| 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(3.5x3.5) |
| Category | Power Management (PMIC) |
| Pins | 21 |
CAD (KiCad official)
- Symbol:
TPS74401RGRR - Footprint:
Package_DFN_QFN:QFN-20-1EP_3.5x3.5mm_P0.5mm_EP2x2mm - 3D model: VQFN-20(3.5x3.5), generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 0.9 mm nominal QFN height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)
- 3D model files:
tps74401rgrr-etched.step/tps74401rgrr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tps74401rgrr.step/tps74401rgrr.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 2026-10-07, 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, primaryclaude-haiku-4-5-20251001(text), consensusclaude-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).