ME6118A33B3G from MICRONE, in a SOT-223. 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 return / device reference (VSS). Also serves as the SOT-223 tab thermal pad in this package.
2	VOUT	power_out	Regulated 3.3V output (±2%). Supplies up to 1A (typ. 800mA guaranteed) with 680mV typ. dropout at 800mA. Requires ≥10µF ceramic output capacitor for stability.
3	VIN	power_in	Unregulated input supply. Operating range 2.5V to 18V (absolute maximum 18V). Requires ≥10µF ceramic input capacitor. Must be at least VOUT+VDROPOUT for regulation.

Key specifications

Parameter	Value
Manufacturer	MICRONE
Package	SOT-223
Category	PMIC
Pins	3

Ordering variants

Same part, different packaging or reel option.

ME6118A33B3G
ME6118A33B3GA33M3G
ME6118A33B3GH33M3G
ME6118A33B3GA33PG
ME6118A33B3GL50K3G

CAD (KiCad official)

Symbol: ME6118A33B3G
Footprint: Package_TO_SOT_SMD:SOT-223-3_TabPin2
3D model: SOT-223 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`me6118a33b3g.step`	64 KB	You want the bare part, or you mark your own boards.
`me6118a33b3g-etched.step`	2.5 MB	You want the part with `ME6118A33B3G` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 607 faces against 75 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 (17 pp, sha256 a7f450566318afe8, 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