sgm2040-3-0yn5g
Public Unreviewedby Ray
SGMICRO SGM2040 3 0YN5G TR Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-5. Datasheet-verified pinout, KiCad symbol/footprint/3D.
Contents
README
markdownSGM2040-3.0YN5G
SGMICRO SGM2040 3 0YN5G TR · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5
SGM2040-3.0YN5G from SGMICRO SGM2040 3 0YN5G TR, 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 ceramic capacitor placed as close as possible to the pin for good decoupling. |
| 2 | GND | power_in | Device ground reference. |
| 3 | EN | input | Enable input. Drive high (VIH ≥ 1.4V) to enable the regulator, drive low (VIL ≤ 0.4V) to shut it down. Contains an internal pull-down current source, so the pin defaults to the disabled state if left floating. |
| 4 | NC | unconnected | No internal connection. May be left floating or tied to GND. |
| 5 | OUT | power_out | Regulated 3.0V output pin, up to 250mA. Requires a ceramic output capacitor with effective capacitance of 0.1µF to 10µF (typ 0.22µF) placed as close as possible to the pin for stability. Features automatic discharge (~60Ω, RDIS) to VOUT when the part is disabled. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | SGMICRO SGM2040 3 0YN5G TR |
| Package | SOT-23-5 |
| Category | PMIC |
| Pins | 5 |
Ordering variants
SGM2040-3.0YN5G/TRSGM2040-3.0YN5GYUDH4G/TR
CAD (KiCad official)
- Symbol:
SGM2040-3.0YN5G - 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 |
|---|---|---|
sgm2040-3-0yn5g.step |
85 KB | You want the bare part, or you mark your own boards. |
sgm2040-3-0yn5g-etched.step |
2.7 MB | You want the part with SGM2040-3-0YN5G 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 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 SGM2040 3 0YN5G TR 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).