LM285D-2.5R2G from onsemi, in a SOIC-8. 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	NC	unconnected	No internal connection. Leave floating or tie to a non-critical net.
2	NC	unconnected	No internal connection. Leave floating or tie to a non-critical net.
3	NC	unconnected	No internal connection. Leave floating or tie to a non-critical net.
4	Anode	passive	Anode terminal of the bandgap reference diode. Typically connected to circuit ground/return. In normal operation the device is biased in reverse with current flowing from Cathode to Anode.
5	NC	unconnected	No internal connection. Leave floating or tie to a non-critical net.
6	NC	unconnected	No internal connection. Leave floating or tie to a non-critical net.
7	NC	unconnected	No internal connection. Leave floating or tie to a non-critical net.
8	Cathode	passive	Cathode terminal of the bandgap reference diode. Regulated 2.500 V node when reverse-biased through an external series resistor from a supply of 1.5 V or greater; operating current range 20 uA to 20 mA with ~0.6 ohm dynamic impedance.

Key specifications

Parameter	Value
Manufacturer	onsemi
Package	SOIC-8
Category	PMIC
Pins	8

Ordering variants

Same part, different packaging or reel option.

LM285D-2.5R2G
LM285D-2.5G
LM285D-2.5R2GZ-2.5
LM285D-2.5R2GZ-2.5G
LM285D-2.5R2GZ-2.5RA
LM285D-2.5R2GZ-2.5RAG
LM285D-2.5R2GZ-2.5RP
LM285D-2.5R2GZ-2.5RPG

CAD (KiCad official)

Symbol: LM285D-2.5R2G
Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
3D model: SOIC-8 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`lm285d-2-5r2g.step`	122 KB	You want the bare part, or you mark your own boards.
`lm285d-2-5r2g-etched.step`	2.6 MB	You want the part with `LM285D-2.5R2G` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 624 faces against 147 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 (9 pp, sha256 481b1a1df6429c0b, 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