UR6225G-50-AB3-C-R from UTC Unisonic Tech, 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	VSS	power_in	Ground / negative supply return (VSS). All internal reference, error amplifier, and pass-device return currents flow through this pin; tie directly to the system ground plane.
2	VIN	power_in	Unregulated input supply (VIN). Operating range up to 10 V absolute maximum; must exceed VOUT by at least the dropout (~120 mV typ at IOUT=100 mA, VOUT=5.0V). Bypass with a ceramic capacitor close to the pin.
3	VOUT	power_out	Regulated 5.0 V output (VOUT) from the internal PMOS pass device. Sources up to 300 mA (subject to package power dissipation, 500 mW for SOT-89); requires an output capacitor for stability and load transient response.

Key specifications

Parameter	Value
Manufacturer	UTC Unisonic Tech
Package	SOT-89
Category	PMIC
Pins	3

Ordering variants

Same part, different packaging or reel option.

UR6225G-xx-AB3-C-R
UR6225L-xx-AB3-C-R
UR6225G-xx-AE3-3-R
UR6225L-xx-AE3-3-R
UR6225G-xx-AF5-C-R
UR6225L-xx-AF5-C-R
UR6225G-xx-AF5-F-R
UR6225L-xx-AF5-F-R
UR6225G-xx-T92-C-B
UR6225G-xx-T92-C-K
UR6225G-xx-T92-B-B
UR6225G-xx-T92-B-K
UR6225L-xx-T92-C-B
UR6225L-xx-T92-C-K
UR6225L-xx-T92-B-B
UR6225L-xx-T92-B-K

CAD (KiCad official)

Symbol: UR6225G-50-AB3-C-R
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
`ur6225g-50-ab3-c-r.step`	57 KB	You want the bare part, or you mark your own boards.
`ur6225g-50-ab3-c-r-etched.step`	2.6 MB	You want the part with `UR6225G-50-AB3-C-R` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 647 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: UTC Unisonic Tech datasheet (15 pp, sha256 7f6be1ca01fc03e5, 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