# REF5050IDR

**Texas Instruments** · Voltage Reference · SOIC-8

REF5050IDR from Texas Instruments, in a SOIC-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | DNC | unconnected | Do not connect; pin is not internally connected and is reserved for future functionality. |
| 2 | VIN | power_in | Supply voltage input accepting voltage from VOUT + 0.2V to 18V maximum at specified load conditions. |
| 3 | TEMP | output | Temperature monitoring output providing voltage proportional to die temperature at 2.64 mV/°C sensitivity over -40°C to 125°C range with approximately 60kΩ source impedance. |
| 4 | GND | power_in | Ground reference and return path for supply and output load currents. |
| 5 | TRIM/NR | passive | Trim and noise reduction pin allowing ±15mV adjustment of VOUT or passive RC filtering when capacitor is connected between pin and GND. |
| 6 | VOUT | output | Reference voltage output of 5.0V nominal with ±10mA output current capability and 1μF to 50μF load capacitance range. |
| 7 | NC | unconnected | No internal connection; pin is not used in this device variant. |
| 8 | DNC | unconnected | Do not connect; pin is not internally connected and is reserved for package compatibility. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |

## CAD (KiCad official)

- Symbol: `REF5050IDR`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `ref5050idr-etched.step` / `ref5050idr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ref5050idr.step` / `ref5050idr.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/cn/lit/ds/symlink/ref50.pdf) (51 pp, sha256 `f48051a48ab3afd3`, retrieved 2026-09-23, 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 0.2`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-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/ref5050idr-datasheet.pdf)