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LM385M3X-1.2

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Texas Instruments LM385M3X 1 2 NOPB Voltage Reference, SOT-23. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs lm385m3x-1-2: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
viewers pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray 1mo ago
lm385m3x-1-2-etched.fit.json lm385m3x-1-2: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
lm385m3x-1-2-etched.glb lm385m3x-1-2: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
lm385m3x-1-2-etched.step lm385m3x-1-2: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
lm385m3x-1-2.glb Publish 0.1.0 · Ray 1mo ago
lm385m3x-1-2.kicad_mod Publish 0.1.0 · Ray 1mo ago
lm385m3x-1-2.kicad_sym Publish 0.1.0 · Ray 1mo ago
lm385m3x-1-2.lbr rebuild the library on adom-lbr 2.32.0. The published copy was built by 2.18.0, which imported every KiCad roundrect and oval pad as a SQUARE EAGLE smd; this carries the real pad shape across (0 -> 3 rounded pads) and stops dropping geometry drawn on KiCad User.N layers. Attributes, connects, pads and the pin-1 marker are gated against decreasing and are unchanged. · Ray 1mo ago
lm385m3x-1-2.step Publish 0.1.0 · Ray 1mo ago
package.json pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray 1mo ago
pads.json pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray 1mo ago
page.json Brief states the pinout check that actually ran (was an unconditional "Datasheet-verified pinout") · Ray 7d ago
README.md lm385m3x-1-2: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray 17d ago

LM385M3X-1.2

Texas Instruments · Voltage Reference · SOT-23

LM385M3X-1.2 from Texas Instruments, in a SOT-23. 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 + passive Cathode (positive terminal) of the band-gap reference diode. Reverse-biased across an external current-limiting resistor; regulates to ~1.235 V with 10 µA-20 mA reverse current.
2 - passive Anode (negative / ground-side terminal) of the band-gap reference diode.
3 DAP passive Die Attach Pad. Per the connection diagram note, pin 3 should be connected to pin 2 (Anode) or left floating; it is not a functional signal terminal.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOT-23
Category PMIC
Pins 3

Ordering variants

Same part, different packaging or reel option.

  • LM385M3X-1.2
  • LM385M3X-1.2M
  • LM385M3X-1.2LP
  • LM385M3X-1.2LPR
  • LM385M3X-1.2LPX
  • LM385M3X-1.2LPRX
  • LM385M3X-1.2H

CAD (KiCad official)

  • Symbol: LM385M3X-1.2
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: lm385m3x-1-2-etched.step / lm385m3x-1-2-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm385m3x-1-2.step / lm385m3x-1-2.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (28 pp, sha256 733089279fec1712, 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