H7650-33PR from Shanghai Siproin Microelectronics, in a SOT-89-3. 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	VSS	power_in	Ground / common return for input and output. Tie to system single-point ground.
2	VIN	power_in	Unregulated supply input, -0.3V to 9V absolute max (recommended <=8V). Requires a 1uF input capacitor (CIN) to VSS close to the pin.
3	VOUT	power_out	Regulated 3.3V output (tolerance +/-2%), up to 750mA typical output current. Requires a 1uF tantalum or 6.8uF ceramic output capacitor (COUT) to VSS for stability.

Key specifications

Parameter	Value
Manufacturer	Shanghai Siproin Microelectronics
Package	SOT-89-3
Category	PMIC
Pins	3

Ordering variants

Same part, different packaging or reel option.

H7650-33PRP
H7650-33PRG
H7650-33PRM5

CAD (KiCad official)

Symbol: H7650-33PR
Footprint: Package_TO_SOT_SMD:SOT-89-3
3D model: SOT-89-3 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`h7650-33pr.step`	57 KB	You want the bare part, or you mark your own boards.
`h7650-33pr-etched.step`	1.5 MB	You want the part with `H7650-33PR` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 398 faces against 42 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 (7 pp, sha256 2363f11ce49fd71c, 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