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Contents

README

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SGM2203-5.0YN3LG

SGMICRO · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23

SGM2203-5.0YN3LG from SGMICRO, in a SOT-23. 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 GND power_in Ground reference for the regulator.
2 VOUT power_out Regulator output, fixed 5.0V nominal (±3%), up to 150mA. Recommended output capacitor range: 1µF to 10µF ceramic.
3 VIN power_in Regulator input, 2.7V to 36V operating range (absolute max 44V). At least 1µF supply bypass capacitor is recommended.

Key specifications

Parameter Value
Manufacturer SGMICRO
Package SOT-23
Category PMIC
Pins 3

Ordering variants

Same part, different packaging or reel option.

  • SGM2203-5.0YN3LG/TR
  • SGM2203-5.0YN5G/TR
  • SGM2203-5.0YK3G/TR
  • SGM2203-5.0YK3LG/TR

CAD (KiCad official)

  • Symbol: SGM2203-5.0YN3LG
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: sgm2203-5-0yn3lg-etched.step / sgm2203-5-0yn3lg-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sgm2203-5-0yn3lg.step / sgm2203-5-0yn3lg.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
sgm2203-5-0yn3lg.step 59 KB You want the bare part, or you mark your own boards.
sgm2203-5-0yn3lg-etched.step 2.7 MB You want the part with SGM2203-5.0YN3LG already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 649 faces against 69 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: SGMICRO datasheet (13 pp, sha256 281efe1f77233635, 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