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LM4041QCEM3-1.2NO

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

componentpower management (pmic)lm4041qcem3-1.2no
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Generated by kicad-footprint-generator · KiCad file format 20260206
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docs lm4041qcem3-1-2no: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
viewers lm4041qcem3-1-2no: viewers · Ray 25d ago
lm4041qcem3-1-2no-etched.fit.json lm4041qcem3-1-2no: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
lm4041qcem3-1-2no-etched.glb lm4041qcem3-1-2no: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
lm4041qcem3-1-2no-etched.step lm4041qcem3-1-2no: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
lm4041qcem3-1-2no.glb Publish 0.1.0 · Ray 25d ago
lm4041qcem3-1-2no.kicad_mod Publish 0.1.0 · Ray 25d ago
lm4041qcem3-1-2no.kicad_sym Publish 0.1.0 · Ray 25d ago
lm4041qcem3-1-2no.lbr Publish 0.1.0 · Ray 25d ago
lm4041qcem3-1-2no.step Publish 0.1.0 · Ray 25d ago
package.json Publish 0.1.0 · Ray 25d ago
page.json Brief states the pinout check that actually ran (was an unconditional "Datasheet-verified pinout") · Ray 7d ago
README.md lm4041qcem3-1-2no: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray 17d ago

LM4041QCEM3-1.2NO

Texas Instruments · Voltage Reference · SOT-23-3

LM4041QCEM3-1.2NO from Texas Instruments, in a SOT-23-3. 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 CATHODE passive Cathode / negative terminal (-). Shunt current flows in here and the 1.225 V reference voltage is developed between this pin and the anode. Bias through a series resistor from the supply so the shunt current stays within 60 µA to 12 mA.
2 ANODE passive Anode / positive terminal (+). Normally tied to ground in a shunt-reference topology; forms the return for the 1.225 V reference developed across cathode-to-anode.
3 NC unconnected No internal connection. Must be left floating, or connected to the anode (+) pin. TI recommends tying to anode in high-EMI environments (e.g. near transformers) or where significant high-frequency switching noise is present.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOT-23-3
Category Power Management (PMIC)
Pins 3

Ordering variants

Same part, different packaging or reel option.

  • LM4041QCEM3-1.2NO
  • LM4041QCEM3-1.2NOIDBZ
  • LM4041QCEM3-1.2NOQDBZ
  • LM4041QCEM3-1.2NOIDCK
  • LM4041QCEM3-1.2NOILP
  • LM4041QCEM3-1.2NOILPR
  • LM4041QCEM3-1.2NOILPE3

CAD (KiCad official)

  • Symbol: LM4041QCEM3-1.2NO
  • Footprint: Package_TO_SOT_SMD:SOT-23-3
  • 3D model: SOT-23-3 (KiCad packages3D, STEP)
  • 3D model files: lm4041qcem3-1-2no-etched.step / lm4041qcem3-1-2no-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm4041qcem3-1-2no.step / lm4041qcem3-1-2no.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (None pp, sha256 cd8ea9cf52a32021, retrieved 2026-08-17, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • 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