# LM285LPRE3-1-2

**Texas Instruments** · Voltage Reference · TO-92

LM285LPRE3-1-2 from Texas Instruments, in a TO-92. 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 | ANODE | input | Shunt reference current input terminal; accepts 0.01 mA to 20 mA reference current (maximum forward current 10 mA) to establish the reference voltage. |
| 2 | CATHODE | power_in | Reference ground and common terminal normally connected to ground; provides reference voltage of 1.223 to 1.247 V between anode and cathode with maximum 30 mA reverse current. |
| 3 | NC | unconnected | No internal connection. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TO-92 |
| Category | Power Management (PMIC) |
| Pins | 3 |

## CAD (KiCad official)

- Symbol: `LM285LPRE3-1-2`
- Footprint: `Package_TO_SOT_THT:TO-92_Inline`
- 3D model: TO-92 (KiCad packages3D, STEP)
- 3D model files: `lm285lpre3-1-2-etched.step` / `lm285lpre3-1-2-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm285lpre3-1-2.step` / `lm285lpre3-1-2.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/lit/gpn/lm385-1.2) (26 pp, sha256 `97e20d3ada7f59b2`, retrieved 2026-10-01, 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/lm285lpre3-1-2-datasheet.pdf)