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TPS79901DDCR

Public Made by Adom

by adom

Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-5. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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3D Model

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Symbol & Footprint

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PCB Footprint

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Datasheet

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Contents

README

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TPS79901DDCR

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

TPS79901DDCR from Texas Instruments, in a SOT-23-5. 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 IN power_in Input supply. Recommended operating range 2.7 V to 6.5 V; absolute maximum 7.0 V. An optional input capacitor may improve source impedance, noise, and PSRR.
2 GND power_in Ground reference for the regulator. All device voltages are referenced to this network ground terminal.
3 EN input Enable input. Driving EN high turns on the regulator; driving it low puts the regulator into shutdown mode. May be tied to IN if not used. Toggling EN engages inrush-current protection at startup.
4 FB input Feedback input for the adjustable version (TPS79901). Connects to the control-loop error amplifier and sets the output voltage via an external resistor divider using VOUT = ((R1 + R2)/R2) × 1.193 V.
5 OUT power_out Regulator output. Supplies up to 200 mA with a typical dropout of 100 mV. Requires a low-ESR ceramic capacitor (total typical capacitance ≥ 2 µF) from OUT to GND for stability.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOT-23-5
Category PMIC
Pins 5

Ordering variants

Same part, different packaging or reel option.

  • TPS79901DDCR
  • TPS79901DDCRDDCT
  • TPS79901DDCRYZUR
  • TPS79901DDCRYZUT
  • TPS79901DDCRDRVR
  • TPS79901DDCRDRVT

CAD (KiCad official)

  • Symbol: TPS79901DDCR
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: tps79901ddcr-etched.step / tps79901ddcr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tps79901ddcr.step / tps79901ddcr.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
tps79901ddcr.step 85 KB You want the bare part, or you mark your own boards.
tps79901ddcr-etched.step 2.3 MB You want the part with TPS79901DDCR already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 544 faces against 102 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

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

  • Datasheet: Texas Instruments datasheet (41 pp, sha256 64d0ab11a001416b, retrieved 2026-08-17, tier: manufacturer)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF