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TPS79933DDCR

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by Ray

Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-5. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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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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Contents

README

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TPS79933DDCR

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

TPS79933DDCR 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. 2.7 V to 6.5 V recommended operating range (absolute max 7 V). Bypass with a small ceramic capacitor to GND for best line-transient performance.
2 GND power_in Ground reference for the regulator. Return path for the input, output, and reference currents.
3 EN input Enable input. Driving EN high turns the regulator on; driving EN low puts the regulator into shutdown mode. Tie EN to IN if the enable function is not used. Absolute-max range −0.3 V to VIN + 0.3 V.
4 NR passive Noise reduction (fixed voltage versions only). Connecting an external capacitor from NR to GND bypasses noise generated by the internal bandgap reference, allowing output noise to be reduced to very low levels.
5 OUT power_out Regulator output. Delivers a fixed 3.3 V at up to 200 mA. Requires a ceramic output capacitor of total typical capacitance ≥ 2 µF (low-ESR) to GND for stability. Output current is internally limited.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

  • TPS79933DDCR
  • TPS79933DDCRDDCT
  • TPS79933DDCRYZUR
  • TPS79933DDCRYZUT
  • TPS79933DDCRDRVR
  • TPS79933DDCRDRVT

CAD (KiCad official)

  • Symbol: TPS79933DDCR
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
tps79933ddcr.step 85 KB You want the bare part, or you mark your own boards.
tps79933ddcr-etched.step 2.5 MB You want the part with TPS79933DDCR already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 586 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