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TL4050A50QDCKRQ1
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Texas Instruments Voltage Reference, SC-70-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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TL4050A50QDCKRQ1
Texas Instruments · Voltage Reference · SC-70-5
TL4050A50QDCKRQ1 from Texas Instruments, in a SC-70-5. 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 | ANODE | passive | Anode (reference ground side) of the two-terminal shunt reference; the datasheet recommends tying pin 2 to it in high-EMI or high-frequency-switching environments. |
| 2 | * | passive | Parasitic Schottky diode connection pin (marked * on the pinout): connect to anode (pin 1) in high-EMI or significant high-frequency switching noise environments, otherwise leave floating. |
| 3 | CATHODE | passive | Cathode of the shunt reference, which sets the regulated 5 V output (VZ) and operates from 60 µA (typ) to 15 mA cathode current. |
| 4 | NC | unconnected | No internal connection. |
| 5 | NC | unconnected | No internal connection. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SC-70-5 |
| Category | Power Management (PMIC) |
| Pins | 5 |
CAD (KiCad official)
- Symbol:
TL4050A50QDCKRQ1 - Footprint:
Package_TO_SOT_SMD:SOT-353_SC-70-5 - 3D model: SC-70-5 (KiCad packages3D, STEP)
- 3D model files:
tl4050a50qdckrq1-etched.step/tl4050a50qdckrq1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tl4050a50qdckrq1.step/tl4050a50qdckrq1.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (28 pp, sha256
f7e77a76482b9b0c, 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-sonnet-5-5(text+vision), consensusclaude-opus-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).
# TL4050A50QDCKRQ1
**Texas Instruments** · Voltage Reference · SC-70-5
TL4050A50QDCKRQ1 from Texas Instruments, in a SC-70-5. 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 | ANODE | passive | Anode (reference ground side) of the two-terminal shunt reference; the datasheet recommends tying pin 2 to it in high-EMI or high-frequency-switching environments. |
| 2 | * | passive | Parasitic Schottky diode connection pin (marked * on the pinout): connect to anode (pin 1) in high-EMI or significant high-frequency switching noise environments, otherwise leave floating. |
| 3 | CATHODE | passive | Cathode of the shunt reference, which sets the regulated 5 V output (VZ) and operates from 60 µA (typ) to 15 mA cathode current. |
| 4 | NC | unconnected | No internal connection. |
| 5 | NC | unconnected | No internal connection. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SC-70-5 |
| Category | Power Management (PMIC) |
| Pins | 5 |
## CAD (KiCad official)
- Symbol: `TL4050A50QDCKRQ1`
- Footprint: `Package_TO_SOT_SMD:SOT-353_SC-70-5`
- 3D model: SC-70-5 (KiCad packages3D, STEP)
- 3D model files: `tl4050a50qdckrq1-etched.step` / `tl4050a50qdckrq1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tl4050a50qdckrq1.step` / `tl4050a50qdckrq1.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/tl4050c20-q1) (28 pp, sha256 `f7e77a76482b9b0c`, 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-sonnet-5-5` (text+vision), consensus `claude-opus-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/tl4050a50qdckrq1-datasheet.pdf)