NCV4264-2ST50T3G from onsemi, in a SOT-223-3. 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	VIN	power_in	Unregulated input voltage. Operating range 4.5 V to 45 V; withstands transients from -42 V to +45 V. A 100 nF input capacitor is recommended.
2	GND	power_in	Ground; substrate connection. Tied internally to the TAB.
3	VOUT	power_out	Regulated output voltage; collector of the internal PNP pass transistor. Fixed 5.0 V ±2.0% at up to 100 mA. Requires a stability output capacitor of ≥10 µF (5.0 V version) with ESR within the specified stability window.
TAB	GND	power_in	Ground; substrate and best thermal connection to the die. Solder to a copper pour for effective heat dissipation (θJA ~99 °C/W with 1 oz, 100 mm² copper).

Key specifications

Parameter	Value
Manufacturer	onsemi
Package	SOT-223-3
Category	PMIC
Pins	4

Ordering variants

Same part, different packaging or reel option.

NCV4264-2ST50T3G
NCV4264-2ST50T3GST33T3G
NCV4264-2ST50T3GD

CAD (KiCad official)

Symbol: NCV4264-2ST50T3G
Footprint: Package_TO_SOT_SMD:SOT-223-3_TabPin2
3D model: SOT-223-3 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`ncv4264-2st50t3g.step`	64 KB	You want the bare part, or you mark your own boards.
`ncv4264-2st50t3g-etched.step`	2.8 MB	You want the part with `NCV4264-2ST50T3G` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 672 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: onsemi datasheet (11 pp, sha256 46d2bf0aebb126d7, retrieved 2026-08-17, tier: manufacturer)
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