component
LM4041BIM3-1.2
Public Made by Adomby adom
Texas Instruments Voltage Reference, SOT-23. Pinout cross-checked by two models against the datasheet, 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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README
markdownLM4041BIM3-1.2
Texas Instruments · Voltage Reference · SOT-23
LM4041BIM3-1.2 from Texas Instruments, in a SOT-23. 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 | Cathode | passive | Negative terminal (负极); shunt current flows here and the 1.225 V reference output voltage appears at this node; operating reverse current range 60 μA to 12 mA. |
| 2 | Anode | power_in | Positive terminal (正极); normally connected to circuit ground; serves as the low-side return for the shunt current path. |
| 3 | NC | unconnected | No-connect (NC*); internally connected to the cathode (pin 1) via die-attach bond; must be left floating or connected to the anode (pin 2); in high-EMI environments TI recommends connecting to the anode. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOT-23 |
| Category | Power Management (PMIC) |
| Pins | 3 |
CAD (KiCad official)
- Symbol:
LM4041BIM3-1.2 - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
lm4041bim3-1-2-etched.step/lm4041bim3-1-2-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm4041bim3-1-2.step/lm4041bim3-1-2.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (54 pp, sha256
cd8ea9cf52a32021, retrieved 2026-09-24, 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 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-4-6(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).