component
LM4050QCEM3X5.0
Public Made by Adomby adom
Texas Instruments Voltage Reference, SOT-23-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
LM4050QCEM3X5.0
Texas Instruments · Voltage Reference · SOT-23-3
LM4050QCEM3X5.0 from Texas Instruments, in a SOT-23-3. 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 | Cathode | bidirectional | Shunt current and input voltage pin; the reference regulates the voltage between cathode and anode, which depends on the current supplied to the cathode, and that current must stay within the datasheet's minimum regulation current and 15 mA maximum operating current. |
| 2 | Anode | passive | General-purpose pin that is normally connected to ground and serves as the negative (−) reference terminal; on SOT-23 devices a parasitic Schottky diode exists between this pin and pin 3. |
| 3 | NC | unconnected | No internal connection; this pin must be left floating or connected to pin 2 (anode), 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-23-3 |
| Category | Power Management (PMIC) |
| Pins | 3 |
CAD (KiCad official)
- Symbol:
LM4050QCEM3X5.0 - Footprint:
Package_TO_SOT_SMD:SOT-23-3 - 3D model: SOT-23-3 (KiCad packages3D, STEP)
- 3D model files:
lm4050qcem3x5-0-etched.step/lm4050qcem3x5-0-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm4050qcem3x5-0.step/lm4050qcem3x5-0.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).
# LM4050QCEM3X5.0
**Texas Instruments** · Voltage Reference · SOT-23-3
LM4050QCEM3X5.0 from Texas Instruments, in a SOT-23-3. 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 | Cathode | bidirectional | Shunt current and input voltage pin; the reference regulates the voltage between cathode and anode, which depends on the current supplied to the cathode, and that current must stay within the datasheet's minimum regulation current and 15 mA maximum operating current. |
| 2 | Anode | passive | General-purpose pin that is normally connected to ground and serves as the negative (−) reference terminal; on SOT-23 devices a parasitic Schottky diode exists between this pin and pin 3. |
| 3 | NC | unconnected | No internal connection; this pin must be left floating or connected to pin 2 (anode), 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-23-3 |
| Category | Power Management (PMIC) |
| Pins | 3 |
## CAD (KiCad official)
- Symbol: `LM4050QCEM3X5.0`
- Footprint: `Package_TO_SOT_SMD:SOT-23-3`
- 3D model: SOT-23-3 (KiCad packages3D, STEP)
- 3D model files: `lm4050qcem3x5-0-etched.step` / `lm4050qcem3x5-0-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm4050qcem3x5-0.step` / `lm4050qcem3x5-0.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/lm4050qcem3x5-0-datasheet.pdf)