ME6119A50PG from MICRONE, in a SOT-89-3. 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	VSS	power_in	Ground reference for the regulator. Connect to system ground; the input and output capacitors return here.
2	VIN	power_in	Unregulated input supply, 2.5 V to 18 V (absolute max 18 V). A 10 µF bypass capacitor from VIN to VSS is recommended.
3	VOUT	power_out	Regulated 5.0 V output, up to 400 mA (500 mA absolute max). Requires a 10 µF output capacitor with ESR < 0.5 Ω for stability. Typical dropout is 104 mV at IOUT = 100 mA.

Key specifications

Parameter	Value
Manufacturer	MICRONE
Package	SOT-89-3
Category	PMIC
Pins	3

Ordering variants

Same part, different packaging or reel option.

ME6119A50PG
ME6119A50PGA30PG
ME6119A50PGA33PG
ME6119A50PGA36PG
ME6119A50PGA40PG
ME6119A50PGC50M5G
ME6119A50PGC30M5G
ME6119A50PGC33M5G
ME6119A50PGC36M5G
ME6119A50PGC40M5G

CAD (KiCad official)

Symbol: ME6119A50PG
Footprint: Package_TO_SOT_SMD:SOT-89-3
3D model: SOT-89-3 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`me6119a50pg.step`	57 KB	You want the bare part, or you mark your own boards.
`me6119a50pg-etched.step`	1.5 MB	You want the part with `ME6119A50PG` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 409 faces against 42 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: MICRONE datasheet (11 pp, sha256 8972dcae066db662, 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