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lm285m-2-5

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Texas Instruments LM285M 2 5 NOPB Voltage Reference, SOIC-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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LM285M-2.5

Texas Instruments LM285M 2 5 NOPB · Voltage Reference · SOIC-8

LM285M-2.5 from Texas Instruments LM285M 2 5 NOPB, 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 convenient net for routing.
2 - passive Negative terminal (anode) of the 2-terminal band-gap reference diode. In normal (reverse-biased) operation this pin is the ground/return side; the 2.5 V reference appears from Pin 8 (+) to Pin 2 (−). Operating reverse current range 20 μA to 20 mA; absolute max reverse current 30 mA, forward current 10 mA.
3 NC unconnected No internal connection. Leave floating or tie to a convenient net for routing.
4 NC unconnected No internal connection. Leave floating or tie to a convenient net for routing.
5 NC unconnected No internal connection. Leave floating or tie to a convenient net for routing.
6 NC unconnected No internal connection. Leave floating or tie to a convenient net for routing.
7 NC unconnected No internal connection. Leave floating or tie to a convenient net for routing.
8 + passive Positive terminal (cathode) of the 2-terminal band-gap reference diode. When biased through a series resistor from a supply of ≥ ~3 V, this pin regulates to 2.5 V (typ) with respect to Pin 2 (−) over 20 μA to 20 mA of reverse current. Typical reverse dynamic impedance 1 Ω at 100 μA / 20 Hz; wideband noise ~120 μV rms (10 Hz-10 kHz).

Key specifications

Parameter Value
Manufacturer Texas Instruments LM285M 2 5 NOPB
Package SOIC-8
Category PMIC
Pins 8

Ordering variants

  • LM285M-2.5/NOPB
  • LM285M-2.5LM285MX-2.5/NOPB
  • LM285M-2.5LM285BXM-2.5/NOPB
  • LM285M-2.5LM285BXMX-2.5/NOPB
  • LM285M-2.5LM285BYM-2.5/NOPB
  • LM285M-2.5LM285BYMX-2.5/NOPB
  • LM285M-2.5LM285Z-2.5/NOPB
  • LM285M-2.5LM285Z-2.5/LFT7
  • LM285M-2.5LM285BXZ-2.5/NOPB
  • LM285M-2.5LM285BYZ-2.5/NOPB

CAD (KiCad official)

  • Symbol: LM285M-2.5
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Texas Instruments LM285M 2 5 NOPB datasheet (None pp, sha256 e21dc7330198816d, 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

Symbol & Footprint

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PCB Footprint

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Datasheet

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