# REF5045AIDGKT

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

REF5045AIDGKT 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. |
| 2 | VIN | power_in | Input supply voltage, operating from VOUT+0.2V to 18V for standard-grade devices. |
| 3 | TEMP | output | Temperature monitoring output nominally 509mV+2.64×T(°C) with 60kΩ source impedance for temperature sensing. |
| 4 | GND | power_in | Ground reference rail. |
| 5 | TRIM/NR | passive | Noise reduction pin; connect bypass capacitor to ground for output noise filtering. |
| 6 | VOUT | output | Reference voltage output 4.5V nominal with ±10mA current sourcing and sinking capability. |
| 7 | NC | unconnected | No internal connection; leave floating or connect to ground. |
| 8 | DNC | unconnected | Do not connect. |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `REF5045AIDGKT`
- Footprint: `Package_SO:VSSOP-8_2.3x2mm_P0.5mm`
- 3D model: VSSOP-8-0.65mm (KiCad packages3D, STEP)
- 3D model files: `ref5045aidgkt-etched.step` / `ref5045aidgkt-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ref5045aidgkt.step` / `ref5045aidgkt.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 `47016a2b0f69989d`, retrieved 2026-10-06, tier: lcsc)
- **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/ref5045aidgkt-datasheet.pdf)