# SUL6018S5-18

**Suntek** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5L

SUL6018S5-18 from Suntek, in a SOT-23-5L. 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 | VIN | power_in | Input pin; accepts 1.2V to 5.5V input voltage range. |
| 2 | GND | power_in | Ground pin. |
| 3 | EN | input | Chip enable pin that turns the regulator on or off; shutdown current is 0.05μA. |
| 4 | NC | unconnected | No connection in fixed-voltage mode (the -18 fixed 1.8V version). |
| 5 | VOUT | power_out | Regulated output pin sourcing up to 350mA, fixed 1.8V for the -18 version. |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `SUL6018S5-18`
- Footprint: `Package_TO_SOT_SMD:SOT-23-5`
- 3D model: SOT-23-5L (KiCad packages3D, STEP)
- 3D model files: `sul6018s5-18-etched.step` / `sul6018s5-18-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sul6018s5-18.step` / `sul6018s5-18.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Suntek datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8602938610002120704) (11 pp, sha256 `e3fee1141c7d6a15`, retrieved 2026-10-21, 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/sul6018s5-18-datasheet.pdf)