# REF5020ID

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

REF5020ID from Texas Instruments, in a SOIC-8. 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; this pin must be left unconnected. |
| 2 | VIN | power_in | Input supply voltage; must be at least VOUT + 0.2 V (2.7 V minimum for REF5020) and no more than 18 V for the REF50xxI grade. |
| 3 | TEMP | output | Temperature monitoring output with VTEMP = 509 mV + 2.64 mV/°C × T and about 60 kΩ source impedance, accurate to roughly ±15 °C; buffer it with a low-drift op amp if it is loaded. |
| 4 | GND | power_in | Ground reference for the device. |
| 5 | TRIM/NR | passive | Output adjustment or noise reduction pin for the REF50xxI grade. |
| 6 | VOUT | power_out | Reference voltage output (2.048 V for REF5020); output current is limited to ±10 mA. |
| 7 | NC | unconnected | No internal connection; leave floating or connect to GND. |
| 8 | DNC | unconnected | Do not connect; this pin must be left unconnected. |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `REF5020ID`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `ref5020id-etched.step` / `ref5020id-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ref5020id.step` / `ref5020id.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/lit/ds/symlink/ref50.pdf) (52 pp, sha256 `6c25f3e72085f076`, retrieved 2026-10-08, tier: lcsc)
- **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/ref5020id-datasheet.pdf)