ME3102AM5G 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	EN	input	Chip enable input. Drive above V_EH (>=1.5V) to enable the converter; drive below V_EL (<=0.3V) for shutdown (I_SD ~0.1µA). Do not leave floating.
2	GND	power_in	Device ground. Return for input decoupling and internal synchronous rectifier; connect to system ground plane with a low-impedance path.
3	SW	output	Switching node. Connects to the drain of the internal PMOS main switch and NMOS synchronous rectifier. Connect the external inductor (0.6µH-4.7µH) here. Absolute max -0.3V to V_IN.
4	VIN	power_in	Power supply input, 2.5V to 5.5V (absolute max 6.0V). Bypass with a 22µF plus 0.1µF ceramic capacitor to GND as close to the pin as possible.
5	FB	input	Feedback input to the internal error amplifier. Regulated to V_FB = 0.6V (typ). Connect to the resistor divider from the output (Vo = 0.6 × (1 + R1/R2)). Absolute max 6.0V.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

ME3102AM5G
ME3102AM5GBM5G
ME3102AM5GBN6AG
ME3102AM5GCN6AG

CAD (KiCad official)

Symbol: ME3102AM5G
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
`me3102am5g.step`	85 KB	You want the bare part, or you mark your own boards.
`me3102am5g-etched.step`	1.9 MB	You want the part with `ME3102AM5G` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 464 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 (12 pp, sha256 1e838e01ddeffb17, 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