H7328-A from Shanghai Siproin Microelectronics, in a SOT-23-3. 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 reference and return for the regulator. Tie to the system single-point ground per the application-circuit recommendation.
2	VOUT	power_out	Regulated 2.8V output (2.744V min / 2.856V max at IOUT=10mA). Delivers up to 250mA typical; requires a ~10µF output capacitor (CL) for stability per the application circuit.
3	VIN	power_in	Unregulated supply input, 3.8V to 15V recommended (18V absolute max). Decouple with ~10µF input capacitor (Cin). Must exceed VOUT by at least the dropout voltage (~100mV @ 40mA).

Key specifications

Parameter	Value
Manufacturer	Shanghai Siproin Microelectronics
Package	SOT-23-3
Category	PMIC
Pins	3

Ordering variants

Same part, different packaging or reel option.

H7328-AT
H7328-AP
H7328-AM
H7328-AN

CAD (KiCad official)

Symbol: H7328-A
Footprint: Package_TO_SOT_SMD:SOT-23-3
3D model: SOT-23-3 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`h7328-a.step`	59 KB	You want the bare part, or you mark your own boards.
`h7328-a-etched.step`	1.3 MB	You want the part with `H7328-A` 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 69 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: Shanghai Siproin Microelectronics datasheet (14 pp, sha256 792fed91578d2bec, 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