# REF5050IDGKR

**Texas Instruments** · Voltage References · VSSOP-8-0.65mm

REF5050IDGKR from Texas Instruments, in a VSSOP-8-0.65mm. 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 | DNC | unconnected | Do Not Connect - has no internal connection and should not be externally connected. |
| 2 | VIN | power_in | Supply voltage input accepting VOUT + 0.2V to 18V with maximum quiescent current of 1.2mA (-40°C to 125°C). |
| 3 | TEMP | output | Temperature sensor output providing 575mV nominal at 25°C with 2.64mV/°C sensitivity and high source impedance for monitoring die temperature. |
| 4 | GND | power_in | Reference ground providing return path for circuit currents up to ±10mA. |
| 5 | TRIM/NR | passive | Trim/noise reduction node with high output impedance for connection to external capacitors for filtering or resistor networks for ±15mV output adjustment. |
| 6 | VOUT | power_out | Precision 5.0V reference voltage output sourcing or sinking ±10mA with ±0.05% initial accuracy and 3ppm/°C temperature coefficient. |
| 7 | NC | unconnected | No internal connection - may be left floating or connected to ground without affecting circuit operation. |
| 8 | DNC | unconnected | Do Not Connect - has no internal connection and should not be externally connected. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | VSSOP-8-0.65mm |
| Category | Power Supply Chip |
| Pins | 8 |

## CAD (KiCad official)

- Symbol: `REF5050IDGKR`
- Footprint: `Package_SO:VSSOP-8_2.3x2mm_P0.5mm`
- 3D model: VSSOP-8-0.65mm (KiCad packages3D, STEP)
- 3D model files: `ref5050idgkr-etched.step` / `ref5050idgkr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ref5050idgkr.step` / `ref5050idgkr.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 `42721a64c4263d5f`, retrieved 2026-10-06, 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-4-5-20251001` (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/ref5050idgkr-datasheet.pdf)