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LM4050QCIM3-4.1
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Texas Instruments Voltage Reference, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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LM4050QCIM3-4.1
Texas Instruments · Voltage Reference · SOT-23
LM4050QCIM3-4.1 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 | Shunt current and input voltage pin; the regulated voltage between cathode and anode depends on the current fed to the cathode, which must stay within the minimum operating current (IRMIN) and the 15 mA maximum for the selected version. |
| 2 | Anode | passive | General-purpose pin that is normally grounded and serves as the reference return for the cathode voltage; the datasheet notes a parasitic Schottky diode between this pin and pin 3. |
| 3 | NC | unconnected | No internal connection; it must be left floating or connected to pin 2, and TI recommends connecting it to the anode in applications with high EMI or significant high-frequency switching noise. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOT-23 |
| Category | Power Management (PMIC) |
| Pins | 3 |
CAD (KiCad official)
- Symbol:
LM4050QCIM3-4.1 - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
lm4050qcim3-4-1-etched.step/lm4050qcim3-4-1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm4050qcim3-4-1.step/lm4050qcim3-4-1.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (47 pp, sha256
02a99aa1f022863b, 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, primaryclaude-haiku-5-5(text), consensusclaude-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).
# LM4050QCIM3-4.1
**Texas Instruments** · Voltage Reference · SOT-23
LM4050QCIM3-4.1 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 | Shunt current and input voltage pin; the regulated voltage between cathode and anode depends on the current fed to the cathode, which must stay within the minimum operating current (IRMIN) and the 15 mA maximum for the selected version. |
| 2 | Anode | passive | General-purpose pin that is normally grounded and serves as the reference return for the cathode voltage; the datasheet notes a parasitic Schottky diode between this pin and pin 3. |
| 3 | NC | unconnected | No internal connection; it must be left floating or connected to pin 2, and TI recommends connecting it to the anode in applications with high EMI or significant high-frequency switching noise. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOT-23 |
| Category | Power Management (PMIC) |
| Pins | 3 |
## CAD (KiCad official)
- Symbol: `LM4050QCIM3-4.1`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `lm4050qcim3-4-1-etched.step` / `lm4050qcim3-4-1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm4050qcim3-4-1.step` / `lm4050qcim3-4-1.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/lm4050-n-q1) (47 pp, sha256 `02a99aa1f022863b`, 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](docs/lm4050qcim3-4-1-datasheet.pdf)