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LM285D-2.5R2G

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onsemi LM285D 2 5R2G Voltage Reference, SOIC-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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Generated by kicad-footprint-generator · KiCad file format 20260206
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docs lm285d-2-5r2g: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
viewers pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray
lm285d-2-5r2g-etched.fit.json lm285d-2-5r2g: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
lm285d-2-5r2g-etched.glb lm285d-2-5r2g: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
lm285d-2-5r2g-etched.step lm285d-2-5r2g: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
lm285d-2-5r2g.glb Publish 0.1.0 · Ray
lm285d-2-5r2g.kicad_mod Publish 0.1.0 · Ray
lm285d-2-5r2g.kicad_sym Publish 0.1.0 · Ray
lm285d-2-5r2g.lbr rebuild the library on adom-lbr 2.32.0. The published copy was built by 2.18.0, which imported every KiCad roundrect an… · Ray
lm285d-2-5r2g.step Publish 0.1.0 · Ray
package.json Publish 0.2.0 · Ray
pads.json pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray
page.json lm285d-2-5r2g: specified limits as data (metadata.characteristics, 12 rows from the datasheet) · Ray
README.md lm285d-2-5r2g: specified limits as data (metadata.characteristics, 12 rows from the datasheet) · Ray

LM285D-2.5R2G

onsemi · Voltage Reference · SOIC-8

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

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Reverse Breakdown Voltage (IRmin <= IR <= 20 mA), LM285-2.5 at 25 C V(BR)R 2.462 2.5 2.538 V IRmin <= IR <= 20 mA; TA = 25 C (table default) 2
Reverse Breakdown Voltage (IRmin <= IR <= 20 mA), LM285-2.5 over temperature V(BR)R 2.415 2.585 V IRmin <= IR <= 20 mA; TA = Tlow to Thigh (Note 1) 2
Minimum Operating Current, LM285-2.5 at 25 C IRmin 13 20 uA TA = 25 C 2
Minimum Operating Current, LM285-2.5 over temperature IRmin 30 uA TA = Tlow to Thigh (Note 1) 2
Reverse Current IR 30 mA 2
Forward Current IF 10 mA 2
Operating Ambient Temperature Range (LM285) TA -40 85 C LM285 variant 2
Operating Junction Temperature TJ 150 C 2
Storage Temperature Range Tstg -65 150 C 2
Electrostatic Discharge Sensitivity, Human Body Model (HBM) ESD 4000 V HBM 2
Electrostatic Discharge Sensitivity, Machine Model (MM) ESD 400 V MM 2
Electrostatic Discharge Sensitivity, Charged Device Model (CDM) ESD 2000 V CDM 2

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 files: lm285d-2-5r2g-etched.step / lm285d-2-5r2g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm285d-2-5r2g.step / lm285d-2-5r2g.glb are the bare package body.

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