component

LM4040AIZ-4.1

Public Made by Adom

by adom

Texas Instruments Voltage Reference, TO-92-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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LM4040AIZ-4.1

Texas Instruments · Voltage Reference · TO-92-3

LM4040AIZ-4.1 from Texas Instruments, in a TO-92-3. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 * passive Pin marked * must be left floating or connected to the anode (footnote 1); TI recommends connecting it to the anode in applications with high EMI or significant high-frequency switching noise.
2 Cathode passive Cathode is the shunt current/output voltage pin; the regulated reverse breakdown voltage is developed across cathode and anode, with an external series resistor setting the current.
3 Anode passive Anode is normally connected to ground; the datasheet specifies a reverse current range of 68 µA minimum to 15 mA maximum for the LM4040-N-4.1.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package TO-92-3
Category Power Management (PMIC)
Pins 3

CAD (KiCad official)

  • Symbol: LM4040AIZ-4.1
  • Footprint: Package_TO_SOT_THT:TO-92_Inline
  • 3D model: TO-92-3 (KiCad packages3D, STEP)
  • 3D model files: lm4040aiz-4-1-etched.step / lm4040aiz-4-1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm4040aiz-4-1.step / lm4040aiz-4-1.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (84 pp, sha256 5655b017c6397138, retrieved 2026-10-08, 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: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF