MX5114E from Wuxi Maxinmicro, in a SOT-23-6L. 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	VDD	power_in	Gate drive supply, 4V to 20V. Locally decouple to GND with a low ESR/ESL ceramic capacitor (0.1uF-1uF X5R/X7R) placed as close as possible to the IC, in addition to bulk 10uF-47uF bias capacitance.
2	NC	unconnected	No connection. Leave floating or tie to a stable potential per layout preference.
3	OUT	output	Open-drain output - drain of the internal N-channel MOSFET (RON ~0.4Ω at VDD=10V, ~0.6Ω at VDD=4.5V). Sinks the VCSEL/laser diode current, capable of >15A peak transient (50ns on / 30us off). Absolute maximum -0.3V to VDD+0.3V.
4	GND	power_in	Ground reference for both logic and the internal FET source. All signals are referenced to this ground. Keep high-current output ground path separate from logic/enable signal return.
5	INB	input	Inverting logic input, TTL/CMOS compatible (VIH ~2.1V, VIL ~1.2V). Withstands input up to 18V regardless of VDD. Internally pulled up (~400kΩ) to VDD; connect to GND when not used.
6	IN	input	Noninverting logic input, TTL/CMOS compatible (VIH ~2.1V, VIL ~1.2V). Withstands input up to 18V regardless of VDD. Internally pulled down (~400kΩ) to GND; connect to VDD when not used (e.g. when using only INB in a laser-distance-test configuration).

Key specifications

Parameter	Value
Manufacturer	Wuxi Maxinmicro
Package	SOT-23-6L
Category	PMIC
Pins	6

Ordering variants

Same part, different packaging or reel option.

MX5114E

CAD (KiCad official)

Symbol: MX5114E
Footprint: Package_TO_SOT_SMD:SOT-23-6
3D model: SOT-23-6L (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`mx5114e.step`	97 KB	You want the bare part, or you mark your own boards.
`mx5114e-etched.step`	1.1 MB	You want the part with `MX5114E` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 312 faces against 117 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

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

Datasheet: Wuxi Maxinmicro datasheet (7 pp, sha256 2fd3cd8b6028a33b, retrieved 2026-08-17, tier: lcsc)
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