# REF2041AIDDCT

**Texas Instruments** · Voltage Reference · SOT-23-5

REF2041AIDDCT from Texas Instruments, in a SOT-23-5. 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 | VBIAS | output | Bias voltage output equal to VREF / 2. |
| 2 | GND | power_in | Ground reference pin. |
| 3 | EN | input | Enable input; the device is enabled when EN is at or above VIN - 0.7 V. |
| 4 | VIN | power_in | Input supply voltage; recommended range is VREF + 0.02 V (minimum) to 5.5 V at IL = 0 mA and TA = 25°C. |
| 5 | VREF | power_in | Reference voltage output; 4.096 V for the REF2041. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOT-23-5 |
| Category | Power Management (PMIC) |
| Pins | 5 |

## CAD (KiCad official)

- Symbol: `REF2041AIDDCT`
- Footprint: `Package_TO_SOT_SMD:SOT-23-5`
- 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files: `ref2041aiddct-etched.step` / `ref2041aiddct-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ref2041aiddct.step` / `ref2041aiddct.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/ref20.pdf) (37 pp, sha256 `2b21e0c5aea93ed7`, retrieved 2026-11-05, tier: manufacturer)
- **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/ref2041aiddct-datasheet.pdf)