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docs tpspx3819m5-l-3-3: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
viewers pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray
package.json Publish 0.2.0 · Ray
pads.json pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray
page.json tpspx3819m5-l-3-3: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black I… · Ray
README.md tpspx3819m5-l-3-3: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray
tpspx3819m5-l-3-3-etched.fit.json tpspx3819m5-l-3-3: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
tpspx3819m5-l-3-3-etched.glb tpspx3819m5-l-3-3: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black I… · Ray
tpspx3819m5-l-3-3-etched.step tpspx3819m5-l-3-3: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black I… · Ray
tpspx3819m5-l-3-3.glb Publish 0.1.0 · Ray
tpspx3819m5-l-3-3.kicad_mod Publish 0.1.0 · Ray
tpspx3819m5-l-3-3.kicad_sym Publish 0.1.0 · Ray
tpspx3819m5-l-3-3.lbr rebuild the library on adom-lbr 2.32.0. The published copy was built by 2.18.0, which imported every KiCad roundrect an… · Ray
tpspx3819m5-l-3-3.step Publish 0.1.0 · Ray

TPSPX3819M5-L-3-3

TECH PUBLIC · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5

TPSPX3819M5-L-3-3 from TECH PUBLIC, 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 VIN power_in Input supply voltage. Operating range 2.0 V to 20 V (absolute max 24 V to GND). Bypass with a ceramic or tantalum capacitor to GND close to the pin.
2 GND power_in Ground reference for the regulator. Connect to system ground plane.
3 EN input Enable control input. Drive above VIH (min 1.1 V) to enable the regulator; drive below VIL (max 0.4 V) to place the device in shutdown. EN input current ~10 nA typical at VEN=27V. Do not leave floating.
4 NC unconnected No internal connection. May be left floating or tied to GND for board layout convenience.
5 VOUT power_out Regulated output voltage (3.3 V nominal for the -3-3 option, +/-2% accuracy) at up to 500 mA. Requires a ceramic or tantalum output capacitor for stability. Dropout ~0.42 V at 100 mA for 3.3 V output.

Key specifications

Parameter Value
Manufacturer TECH PUBLIC
Package SOT-23-5
Category PMIC
Pins 5

Ordering variants

Same part, different packaging or reel option.

  • TPSPX3819M5-L-3-3

The extractor listed these alongside TPSPX3819M5-L-3-3, but they are different parts with different electrical characteristics. Do not order them as substitutes.

  • TPSPX3819M5-L-1-8
  • TPSPX3819M5-L-2-5
  • TPSPX3819M5-L-3-0
  • TPSPX3819M5-L-5-0

CAD (KiCad official)

  • Symbol: TPSPX3819M5-L-3-3
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: tpspx3819m5-l-3-3-etched.step / tpspx3819m5-l-3-3-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tpspx3819m5-l-3-3.step / tpspx3819m5-l-3-3.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
tpspx3819m5-l-3-3.step 85 KB You want the bare part, or you mark your own boards.
tpspx3819m5-l-3-3-etched.step 2.8 MB You want the part with TPSPX3819M5-L-3-3 already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 689 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: TECH PUBLIC datasheet (8 pp, sha256 e3f6c61832283900, retrieved 2026-08-17, tier: lcsc)
  • 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