ME6231C33M5G from MICRONE, 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	VIN	power_in	Voltage input. Operating range 3V to 18V; absolute maximum -0.3V to 20V. Recommended 10µF ceramic bypass capacitor (CIN) to VSS at the pin.
2	VSS	power_in	Ground reference for the LDO. Common return for input capacitor, output capacitor, and load.
3	CE	input	Chip enable, active-high (C-variant, external CE). VCEH ≥ 1.5V enables the regulator; VCEL ≤ 0.5V shuts it down (0µA typ shutdown current). Must not be left floating. Absolute maximum: VIN−0.3V to VIN+0.3V.
4	NC	unconnected	No connect. Leave floating or tie to VSS; not internally bonded to any function.
5	VOUT	power_out	Regulated 3.3V output (±1%, VOUT(T)). Delivers up to 500mA typical / 780mA current limit. Dropout 125mV typ at 100mA for the 3.3V variant. Requires a 10µF ceramic output capacitor (CL) to VSS for stability and transient response. Absolute maximum: VIN−0.3V to VIN+0.3V.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

ME6231C33M5G
ME6231C33M5GC18M5G
ME6231C33M5GA33M3G
ME6231C33M5GA33PG

CAD (KiCad official)

Symbol: ME6231C33M5G
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
`me6231c33m5g.step`	85 KB	You want the bare part, or you mark your own boards.
`me6231c33m5g-etched.step`	2.5 MB	You want the part with `ME6231C33M5G` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 597 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: MICRONE datasheet (10 pp, sha256 00f91e88cf5873c7, 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