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Contents

README

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TPS73401DDCT

Texas Instruments · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5

TPS73401DDCT from Texas Instruments, in a SOT-23-5. 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 IN power_in Input supply for the regulator, specified at 2.7 V to 6.5 V with an absolute maximum range of -0.3 V to +7.0 V.
2 GND power_in Ground reference pin for the device.
3 EN input Driving EN high (1.2 V to VIN) enables the regulator and driving it low (0 V to 0.4 V) puts it into shutdown; EN can be tied to IN if unused, and its absolute maximum range is -0.3 V to VIN + 0.3 V.
4 FB input Feedback input to the control-loop error amplifier on the adjustable version (TPS73401), where the internal reference is 1.184 V to 1.232 V (1.208 V typical) and sets the output voltage.
5 OUT power_out Regulator output, which requires a small ceramic capacitor of at least 2.0 µF total typical capacitance from this pin to ground for stability.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOT-23-5
Category Power Management (PMIC)
Pins 5

CAD (KiCad official)

  • Symbol: TPS73401DDCT
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: tps73401ddct-etched.step / tps73401ddct-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tps73401ddct.step / tps73401ddct.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Texas Instruments datasheet (27 pp, sha256 d3aae21ede2d1c07, retrieved 2026-10-08, tier: lcsc)
  • 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