component
TPS79401DCQR
Public Made by Adomby adom
Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223-6. 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
markdownTPS79401DCQR
Texas Instruments · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-223-6
TPS79401DCQR from Texas Instruments, in a SOT-223-6. 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 | EN | input | Enable input: a logic-high level enables the device and a logic-low level puts it into shutdown mode (VEN(HI) 1.7 V min at 2.7 V ≤ VIN ≤ 5.5 V; VEN(LOW) 0.7 V max; VEN absolute range -0.3 V to 6 V for the old chip). |
| 2 | IN | power_in | Unregulated input supply to the regulator, with a recommended range of 2.7 V to 5.5 V and an input capacitor of at least 1 µF to GND. |
| 3 | GND | power_in | Regulator ground, which should be connected to the ground pin and ground plane as recommended in the layout guidance. |
| 4 | OUT | power_out | Regulated output of the device; the recommended output capacitor is at least 1 µF (2.2 µF typical) to GND, with output voltage set from VFB up to 5 V. |
| 5 | FB | input | Feedback input for the adjustable device, which regulates to the internal reference of 1.225 V typical (1.201 V to 1.25 V limits). |
| 6 | GND | power_in | Ground connection on the SOT-223 tab, which is electrically grounded and must be soldered to a large copper area for heat dissipation. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOT-223-6 |
| Category | Power Management (PMIC) |
| Pins | 6 |
CAD (KiCad official)
- Symbol:
TPS79401DCQR - Footprint:
Package_TO_SOT_SMD:SOT-223-6 - 3D model: SOT-223-6 (KiCad packages3D, STEP)
- 3D model files:
tps79401dcqr-etched.step/tps79401dcqr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tps79401dcqr.step/tps79401dcqr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (51 pp, sha256
84291eb77a7c37c6, retrieved 2026-10-11, 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-5-5(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).