H7650-33GR from Shanghai Siproin Microelectronics, in a SOT-223. 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	VIN	power_in	Regulator input supply. Recommended operating range up to 8V (10V absolute max). Bypass to VSS with 1uF input capacitor located close to the pin.
2	VSS	power_in	Ground / common return for the regulator. Use a single-point ground for input and output capacitor returns. Also serves as the package thermal path (SOT-223 tab is connected to VSS).
3	VOUT	power_out	Regulated 3.3V output (H7650-33: 3.234V-3.366V, tolerance +/-2%). Rated 750mA typical, 1.1A absolute max. Bypass to VSS with 1uF tantalum or 6.8uF ceramic output capacitor.

Key specifications

Parameter	Value
Manufacturer	Shanghai Siproin Microelectronics
Package	SOT-223
Category	PMIC
Pins	3

Ordering variants

Same part, different packaging or reel option.

H7650-33GR
H7650-33GRGG
H7650-33GRPR
H7650-33GRPG
H7650-33GRM5R
H7650-33GRM5G

CAD (KiCad official)

Symbol: H7650-33GR
Footprint: Package_TO_SOT_SMD:SOT-223-3_TabPin2
3D model: SOT-223 (KiCad packages3D, STEP)

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