AP2204R-3.3TRG1 from Diodes Incorporated, in a SOT-89. 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	Supply input voltage. Recommended operating range 2.6V to 24V; absolute maximum 38V. Bypass with a 1.0µF ceramic capacitor to GND close to the pin.
2	GND	power_in	Device ground reference. Per Note 4 for SOT-89 Option 1 (suffix R), the substrate/exposed pad should be connected to GND.
3	VOUT	power_out	Regulated 3.3V fixed output. Rated 150mA continuous; requires a 2.2µF ceramic output capacitor to GND for stability.

Key specifications

Parameter	Value
Manufacturer	Diodes Incorporated
Package	SOT-89
Category	PMIC
Pins	3

Ordering variants

Same part, different packaging or reel option.

AP2204R-3.3TRG1R
AP2204R-3.3TRG1RA
AP2204R-3.3TRG1RB
AP2204R-3.3TRG1W
AP2204R-3.3TRG1S

CAD (KiCad official)

Symbol: AP2204R-3.3TRG1
Footprint: Package_TO_SOT_SMD:SOT-89-3
3D model: SOT-89 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`ap2204r-3-3trg1.step`	57 KB	You want the bare part, or you mark your own boards.
`ap2204r-3-3trg1-etched.step`	2.0 MB	You want the part with `AP2204R-3.3TRG1` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 525 faces against 42 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 (18 pp, sha256 b334593c0a8cbac9, 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