# XL9612

**XLSEMI** · LED Drivers · TO-252-5L

XL9612 from XLSEMI, in a TO-252-5L. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | GND | power_in | Ground pin. Common return for the internal power stage and control circuitry; tie to the system ground plane. |
| 2 | CS | input | Output current sense pin. The internal loop regulates the voltage across RCS to a 0.22V reference (±3%), setting IOUT = 0.22V / RCS. Absolute max VCS is -0.3V to 7V. |
| 3 | SW | output | Power switch output pin. Switching node of the synchronous buck power stage; connects to the external inductor. Also internally tied to the TO252 metal tab. |
| 4 | VC | passive | Internal voltage regulator bypass capacitor pin. A 1uF ceramic capacitor is required between VIN and VC to bypass the internal LDO/regulator that supplies gate drive and control circuitry. |
| 5 | VIN | power_in | Power supply input pin. Supports a wide DC input range of 5V to 72V (absolute max 90V). Requires an electrolytic bypass capacitor between VIN and GND for noise suppression. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | XLSEMI |
| Package | TO-252-5L |
| Category | LED Drivers |
| Pins | 5 |

## Ordering variants

Same part, different packaging or reel option.

- `XL9612`

## CAD (KiCad official)

- Symbol: `XL9612`
- Footprint: `Package_TO_SOT_SMD:TO-252-5_TabPin6`
- 3D model: TO-252-5L (KiCad packages3D, STEP)
- 3D model files: `xl9612-etched.step` / `xl9612-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `xl9612.step` / `xl9612.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [XLSEMI datasheet](docs/xl9612-datasheet.pdf) (None pp, sha256 `f114b069e1e1d10e`, retrieved 2026-08-17, tier: manufacturer)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/xl9612-datasheet.pdf)