# XL236-2.5

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

XL236-2.5 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 2.5V shunt reference diode (reverse current 400 µA to 10 mA operating, 15 mA absolute maximum). |
| 5 | ADJ | passive | Adjust pin used to trim the reference for minimum temperature drift. |
| 6 | NC | unconnected | No connection. |
| 7 | NC | unconnected | No connection. |
| 8 | + | passive | Positive terminal of the 2.5V shunt reference diode (forward current 10 mA absolute maximum). |

## 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 |
|---|---|---|---|---|---|---|---|
| Reverse Breakdown Voltage |  | 2.44 | 2.49 | 2.54 | V | TA=25°C, IR=1 mA | 3 |
| Reverse Breakdown Change With Current |  |  | 2.6 | 6 | mV | TA=25°C, 400 μA≤IR≤10 mA | 3 |
| Reverse Dynamic Impedance |  |  | 0.2 | 0.6 | Ω | TA=25°C, IR=1 mA, f = 100 Hz | 3 |
| Temperature Stability |  |  | 7.5 | 18 | mV | −25°C ≤ TA ≤ +85°C (XL236); VR adjusted to 2.490V, IR=1 mA | 3 |
| Reverse Breakdown Change With Current |  |  | 3 | 10 | mV | 400 μA≤IR≤10 mA | 3 |
| Reverse Dynamic Impedance |  |  | 0.4 | 1 | Ω | IR=1 mA | 3 |
| Long Term Stability |  |  | 20 |  | ppm | TA=25°C ±0.1°C, IR=1 mA, t = 1000 hrs | 3 |
| Reverse Current |  |  |  | 15 | mA |  | 3 |
| Forward Current |  |  |  | 10 | mA |  | 3 |
| Storage Temperature |  | -60 |  | 150 | °C |  | 3 |
| Operating Temperature Range |  | -40 |  | 85 | °C | XL236 | 3 |
| SOP Soldering Vapor Phase |  |  |  | 215 | °C | Vapor Phase (60 sec.) | 3 |
| SOP Soldering Infrared |  |  |  | 220 | °C | Infrared (15 sec.) | 3 |
| Thermal Resistance Junction to Ambient (SOP) | θja |  | 165 |  | °C/W | SOP package | 3 |
| Reverse Operating Current (minimum) |  | 400 |  |  | μA | Wide operating current range stated in Features | 1 |
| Reverse Operating Current (maximum) |  |  |  | 10 | mA | Wide operating current range stated in Features | 1 |

## CAD (KiCad official)

- Symbol: `XL236-2.5`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files: `xl236-2-5-etched.step` / `xl236-2-5-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `xl236-2-5.step` / `xl236-2-5.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/8588912247359328256) (11 pp, sha256 `570a459261570e57`, 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/xl236-2-5-datasheet.pdf)