component
LM4040DIM3X-5.0
Public Made by Adomby adom
Texas Instruments LM4040DIM3X 5 0 NOPB Voltage Reference, SOT-23. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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Contents
README
markdownLM4040DIM3X-5.0
Texas Instruments · Voltage Reference · SOT-23
LM4040DIM3X-5.0 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 | Cathode | passive | Cathode / shunt current input. Regulates to 5.0 V above the anode when reverse-biased through an external series resistor from VDD. Operating shunt current 60 µA to 15 mA. |
| 2 | Anode | passive | Anode pin, normally grounded. Serves as the reference return for the shunt regulator. |
| 3 | NC | unconnected | No connect. Must be left floating or tied to pin 2 (Anode). No internal connection to the die. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOT-23 |
| Category | PMIC |
| Pins | 3 |
Ordering variants
Same part, different packaging or reel option.
LM4040DIM3X-5.0LM4040DIM3X-5.0DIZ
Related parts (NOT interchangeable)
The extractor listed these alongside LM4040DIM3X-5.0, but they are different parts with different electrical characteristics. Do not order them as substitutes.
LM4040DIM3X-5.0DIM7
CAD (KiCad official)
- Symbol:
LM4040DIM3X-5.0 - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
lm4040dim3x-5-0-etched.step/lm4040dim3x-5-0-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm4040dim3x-5-0.step/lm4040dim3x-5-0.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (71 pp, sha256
0b3a82f9510938cb, 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).