component
LM4050QAEM3X5.0
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.
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LM4050QAEM3X5.0
Texas Instruments · Voltage Reference · SOT-23-3
LM4050QAEM3X5.0 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 | passive | Carries the shunt current and the input voltage; the device regulates the reverse breakdown voltage at this pin with respect to the anode, for reverse currents from 60 µA to 15 mA (datasheet 'Name' column lists this pin as 负极, and its schematic label is Cathode). |
| 2 | Anode | passive | Common pin, usually connected to ground; the absolute maximum forward current is 10 mA and the reverse current is 20 mA. |
| 3 | NC | unconnected | No internal connection; it must be left floating or connected to pin 2 (anode) because of a parasitic Schottky diode between pin 2 and the die contact, and TI recommends connecting it to the anode in high-EMI or high-frequency switching environments. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOT-23-3 |
| Category | Power Management (PMIC) |
| Pins | 3 |
CAD (KiCad official)
- Symbol:
LM4050QAEM3X5.0 - Footprint:
Package_TO_SOT_SMD:SOT-23-3 - 3D model: SOT-23-3 (KiCad packages3D, STEP)
- 3D model files:
lm4050qaem3x5-0-etched.step/lm4050qaem3x5-0-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm4050qaem3x5-0.step/lm4050qaem3x5-0.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).
# LM4050QAEM3X5.0
**Texas Instruments** · Voltage Reference · SOT-23-3
LM4050QAEM3X5.0 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 | passive | Carries the shunt current and the input voltage; the device regulates the reverse breakdown voltage at this pin with respect to the anode, for reverse currents from 60 µA to 15 mA (datasheet 'Name' column lists this pin as 负极, and its schematic label is Cathode). |
| 2 | Anode | passive | Common pin, usually connected to ground; the absolute maximum forward current is 10 mA and the reverse current is 20 mA. |
| 3 | NC | unconnected | No internal connection; it must be left floating or connected to pin 2 (anode) because of a parasitic Schottky diode between pin 2 and the die contact, and TI recommends connecting it to the anode in high-EMI or high-frequency switching environments. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOT-23-3 |
| Category | Power Management (PMIC) |
| Pins | 3 |
## CAD (KiCad official)
- Symbol: `LM4050QAEM3X5.0`
- Footprint: `Package_TO_SOT_SMD:SOT-23-3`
- 3D model: SOT-23-3 (KiCad packages3D, STEP)
- 3D model files: `lm4050qaem3x5-0-etched.step` / `lm4050qaem3x5-0-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm4050qaem3x5-0.step` / `lm4050qaem3x5-0.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/lm4050qaem3x5-0-datasheet.pdf)