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SGM2040-3.3YN5G

Public Made by Adom

by adom

SGMICRO SGM2040 3 3YN5G TR Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-5. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

componentpmicsgm2040-3.3yn5g
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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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SGM2040-3.3YN5G

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

SGM2040-3.3YN5G from SGMICRO, 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 voltage pin. Operating range 1.7V to 7.5V (abs max 8V). Bypass with a 1µF (min 0.5µF) ceramic capacitor to GND placed as close as possible to the pin.
2 GND power_in Ground pin. Common return for input, output, and enable references.
3 EN input Enable pin. Drive high (VIH ≥ 1.4V) to turn the regulator on; drive low (VIL ≤ 0.4V) to shut it down. Has an internal pull-down current source; abs max -0.3V to 6V.
4 NC unconnected No internal connection. Leave floating or tie to GND.
5 OUT power_out Regulator output pin. Fixed 3.3V, up to 250mA. Requires a ceramic capacitor with effective capacitance 0.1µF to 10µF (0.22µF typ) to GND placed as close as possible to the pin for stability.

Key specifications

Parameter Value
Manufacturer SGMICRO
Package SOT-23-5
Category PMIC
Pins 5

Ordering variants

Same part, different packaging or reel option.

  • SGM2040-3.3YN5G/TR
  • SGM2040-3.3YUDH4G/TR

CAD (KiCad official)

  • Symbol: SGM2040-3.3YN5G
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: sgm2040-3-3yn5g-etched.step / sgm2040-3-3yn5g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sgm2040-3-3yn5g.step / sgm2040-3-3yn5g.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
sgm2040-3-3yn5g.step 85 KB You want the bare part, or you mark your own boards.
sgm2040-3-3yn5g-etched.step 2.7 MB You want the part with SGM2040-3.3YN5G already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 655 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: SGMICRO datasheet (16 pp, sha256 cabd1eb65e9bc149, 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