HX4002-MFC from HEXIN, in a SOT-23-6. 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	VOUT	power_out	Regulated output voltage (typ 5V, 4.8V-5.2V). Bypass with a low-ESR ceramic capacitor of at least 10μF placed as close to the pin as possible. Rated for up to 250mA (VIN=4.5V); short-circuit current limits to ~300mA.
2	GND	power_in	Ground return. Tie to a solid ground plane for best performance and thermal dissipation.
3	EN	input	Enable / shutdown input, active high (CMOS input, threshold ~0.8V). Drive high to enable the charge pump; drive low to enter shutdown (<1μA). Must not be left floating. Absolute max -0.3V to 6V.
4	C-	passive	Flying capacitor negative terminal. Connect to the negative side of the external flying capacitor (≥2.2μF low-ESR ceramic; never polarized). Do not load this pin.
5	VIN	power_in	Input supply voltage, 2.7V to 5V (absolute max 6V). Bypass with a low-ESR ceramic capacitor of at least 10μF placed as close to the pin as possible.
6	C+	passive	Flying capacitor positive terminal. Connect to the positive side of the external flying capacitor (≥2.2μF low-ESR ceramic; never polarized). Do not load this pin.

Key specifications

Parameter	Value
Manufacturer	HEXIN
Package	SOT-23-6
Category	PMIC
Pins	6

CAD (KiCad official)

Symbol: HX4002-MFC
Footprint: Package_TO_SOT_SMD:SOT-23-6
3D model: SOT-23-6 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`hx4002-mfc.step`	97 KB	You want the bare part, or you mark your own boards.
`hx4002-mfc-etched.step`	1.7 MB	You want the part with `HX4002-MFC` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 434 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: HEXIN datasheet (10 pp, sha256 08fea31a4ad7d1e0, 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