662K from HXY MOSFET, in a SOT-23. Pinout and pin descriptions extracted from the datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin	Name	Type	Function
1	VSS	power_in	Ground reference (0V) for the regulator. Connect directly to the system ground plane; the output capacitor return and input capacitor return should both terminate here.
2	VOUT	power_out	Regulated 3.3V output. Supplies up to 300mA (typical current limit 300mA, max 350mA) with 2% accuracy. Requires a 1μF ceramic output capacitor to ground for stability.
3	VIN	power_in	Unregulated supply input, operating range 1.8V to 6V (absolute maximum 8V). A 1μF ceramic input capacitor to VSS is recommended close to the pin. Dropout is 160mV at IOUT = 50mA for the 3.3V output.

Key specifications

Parameter	Value
Manufacturer	HXY MOSFET
Package	SOT-23
Category	PMIC
Pins	3

CAD (KiCad official)

Symbol: 662K
Footprint: Package_TO_SOT_SMD:SOT-23
3D model: SOT-23 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`662k.step`	59 KB	You want the bare part, or you mark your own boards.
`662k-etched.step`	1.0 MB	You want the part with `662K` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 241 faces against 69 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: HXY MOSFET datasheet (6 pp, sha256 dfd9f667be698822, 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