# XL285-1.2

**XINLUDA** · Voltage Reference · SOP-8

XL285-1.2 from XINLUDA, in a SOP-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 | NC | unconnected | No connection. |
| 2 | NC | unconnected | No connection. |
| 3 | NC | unconnected | No connection. |
| 4 | - | passive | Cathode-side negative terminal of the 2-terminal 1.235V reference diode, operating over 10μA to 20mA reverse current. |
| 5 | NC | unconnected | No connection. |
| 6 | NC | unconnected | No connection. |
| 7 | NC | unconnected | No connection. |
| 8 | + | passive | Positive terminal of the 2-terminal 1.235V reference diode, operating over 10μA to 20mA reverse current. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | XINLUDA |
| Package | SOP-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Thermal Resistance, junction to ambient (SOP package) | θJA |  | 165 |  | °C/W | SOP package, junction to ambient | 2 |

## CAD (KiCad official)

- Symbol: `XL285-1.2`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files: `xl285-1-2-etched.step` / `xl285-1-2-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `xl285-1-2.step` / `xl285-1-2.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [XINLUDA datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8757797105920417792) (12 pp, sha256 `8409d80bd41e2abd`, retrieved 2026-10-18, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-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/xl285-1-2-datasheet.pdf)