AP2281-3WG-7 from Diodes Incorporated, in a SOT-26. 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	OUT	power_out	Voltage output pin - P-channel MOSFET drain. Bypass to GND with a 0.1µF capacitor. Sources the switched load current up to 2A.
2	GND	power_in	Ground reference pin. Tie to system ground; both GND pins (2 and 5) should be connected.
3	EN	input	Enable input, active high. VIH ≥ 1.4V (VIN 1.5-2.7V), ≥1.6V (VIN 2.7-5.25V), ≥1.7V (VIN ≥5.25V); VIL ≤ 0.4V. Input leakage <1µA. Pulling EN low turns off the pass FET and, on AP2281-3, engages the internal discharge FET.
4	IN	power_in	Voltage input pin - P-channel MOSFET source. Operating range 1.5V-6V (absolute max 6.5V). Bypass to GND with a 1µF capacitor located close to the device. Pins 4 and 6 are the same net.
5	GND	power_in	Ground reference pin (second GND). Tie to system ground together with pin 2.
6	IN	power_in	Voltage input pin (second IN). Same net as pin 4 - P-channel MOSFET source input.

Key specifications

Parameter	Value
Manufacturer	Diodes Incorporated
Package	SOT-26
Category	PMIC
Pins	6

Ordering variants

Same part, different packaging or reel option.

AP2281-3WG-7
AP2281-3FDC

CAD (KiCad official)

Symbol: AP2281-3WG-7
Footprint: Package_TO_SOT_SMD:SOT-23-6
3D model: SOT-26 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`ap2281-3wg-7.step`	97 KB	You want the bare part, or you mark your own boards.
`ap2281-3wg-7-etched.step`	2.1 MB	You want the part with `AP2281-3WG-7` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 520 faces against 117 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: Diodes Incorporated datasheet (11 pp, sha256 bcdacbc38085b758, 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