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LM4050QBIM3-5.0
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Texas Instruments Voltage Reference, SOT-23-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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LM4050QBIM3-5.0
Texas Instruments · Voltage Reference · SOT-23-3
LM4050QBIM3-5.0 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 | Shunt current and input voltage pin; the reference regulates the voltage between cathode and anode, and the datasheet limits reverse current to 20 mA absolute maximum with a 15 mA maximum operating current for all versions. |
| 2 | Anode | passive | Common pin, usually grounded, that serves as the return for the reference; the datasheet limits forward current to 10 mA absolute maximum. |
| 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 because of a parasitic Schottky diode between pins 2 and 3 in the SOT-23 package. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOT-23-3 |
| Category | Power Management (PMIC) |
| Pins | 3 |
CAD (KiCad official)
- Symbol:
LM4050QBIM3-5.0 - Footprint:
Package_TO_SOT_SMD:SOT-23-3 - 3D model: SOT-23-3 (KiCad packages3D, STEP)
- 3D model files:
lm4050qbim3-5-0-etched.step/lm4050qbim3-5-0-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm4050qbim3-5-0.step/lm4050qbim3-5-0.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).
# LM4050QBIM3-5.0
**Texas Instruments** · Voltage Reference · SOT-23-3
LM4050QBIM3-5.0 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 | Shunt current and input voltage pin; the reference regulates the voltage between cathode and anode, and the datasheet limits reverse current to 20 mA absolute maximum with a 15 mA maximum operating current for all versions. |
| 2 | Anode | passive | Common pin, usually grounded, that serves as the return for the reference; the datasheet limits forward current to 10 mA absolute maximum. |
| 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 because of a parasitic Schottky diode between pins 2 and 3 in the SOT-23 package. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOT-23-3 |
| Category | Power Management (PMIC) |
| Pins | 3 |
## CAD (KiCad official)
- Symbol: `LM4050QBIM3-5.0`
- Footprint: `Package_TO_SOT_SMD:SOT-23-3`
- 3D model: SOT-23-3 (KiCad packages3D, STEP)
- 3D model files: `lm4050qbim3-5-0-etched.step` / `lm4050qbim3-5-0-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm4050qbim3-5-0.step` / `lm4050qbim3-5-0.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/lm4050qbim3-5-0-datasheet.pdf)