# MX5052S

**Wuxi Maxinmicro** · Power Distribution Switches · SOP-8

MX5052S from Wuxi Maxinmicro, 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 | VS | power_in | Main supply pin for all internal biasing and auxiliary supply for the gate drive charge pump, operating at 5V to 40V and typically connected to VOUT or VIN (a separate supply may be used). |
| 2 | GND | power_in | Ground return for the controller. |
| 3 | IN | input | Voltage sense connection to the external MOSFET source pin, with a recommended range of 1V to 40V (VS≥4.5V required when IN is below 4V) and an absolute maximum of -0.3V to 50V. |
| 4 | IN | input | Voltage sense connection to the external MOSFET source pin, with a recommended range of 1V to 40V (VS≥4.5V required when IN is below 4V) and an absolute maximum of -0.3V to 50V. |
| 5 | OUT | input | Voltage sense connection to the external MOSFET drain pin, with a recommended range of 1V to 40V (VS≥4.5V required when IN is below 4V) and an absolute maximum of -0.3V to 50V. |
| 6 | OUT | input | Voltage sense connection to the external MOSFET drain pin, with a recommended range of 1V to 40V (VS≥4.5V required when IN is below 4V) and an absolute maximum of -0.3V to 50V. |
| 7 | OUT | input | Voltage sense connection to the external MOSFET drain pin, with a recommended range of 1V to 40V (VS≥4.5V required when IN is below 4V) and an absolute maximum of -0.3V to 50V. |
| 8 | OUT | input | Voltage sense connection to the external MOSFET drain pin, with a recommended range of 1V to 40V (VS≥4.5V required when IN is below 4V) and an absolute maximum of -0.3V to 50V. |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `MX5052S`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files: `mx5052s-etched.step` / `mx5052s-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `mx5052s.step` / `mx5052s.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Wuxi Maxinmicro datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590907339367538688) (9 pp, sha256 `65f4cd2a0bee04d2`, retrieved 2026-10-09, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (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/mx5052s-datasheet.pdf)