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Contents

README

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TPS71401DCKR

Texas Instruments · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SC-70-5

TPS71401DCKR from Texas Instruments, in a SC-70-5. 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 FB input In the adjustable configuration, this pin sets the output voltage with the help of the external feedback divider (adjustable output range 1.205 V to 8.8 V).
2 GND power_in Ground pin.
3 NC unconnected No connect pin; it is not connected internally, so connect it to ground for best thermal performance or leave it floating.
4 IN power_in Input supply pin; use a capacitor of 0.1 µF or larger from this pin to ground (input supply range 2.5 V to 10 V).
5 OUT power_out Regulator output; for the new chip a capacitor of 1 µF or larger is required from this pin to ground, and the nominal output capacitance must be greater than 0.47 µF after 50% derating.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SC-70-5
Category Power Management (PMIC)
Pins 5

CAD (KiCad official)

  • Symbol: TPS71401DCKR
  • Footprint: Package_TO_SOT_SMD:SOT-353_SC-70-5
  • 3D model: SC-70-5 (KiCad packages3D, STEP)
  • 3D model files: tps71401dckr-etched.step / tps71401dckr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tps71401dckr.step / tps71401dckr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (39 pp, sha256 3794ea8f66f454a2, 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