H7227-1 from Shanghai Siproin Microelectronics, in a SOT-23. 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. Absolute max -0.3V to 18V; recommended operating range 3.5V to 15V. Decouple with a 1uF input capacitor to GND (Vss).
2	GND	power_in	Ground / Vss reference for the regulator. Common return for input and output capacitors.
3	CE	input	Chip Enable input. Drive high to enable the regulator, low to shut down (referenced to Vss). Detailed logic thresholds are not specified in this datasheet.
4	NC	unconnected	No connect. Not internally bonded; leave floating or tie to GND for mechanical stability.
5	VOUT	power_out	Regulated 2.7V output, ±2% accuracy, capable of >400mA. Requires a 1uF tantalum (or 6.8uF ceramic) output capacitor to GND for stability.

Key specifications

Parameter	Value
Manufacturer	Shanghai Siproin Microelectronics
Package	SOT-23
Category	PMIC
Pins	5

Ordering variants

Same part, different packaging or reel option.

H7227-1M5R
H7227-1M5G
H7227-1PR
H7227-1PG
H7227-1MR
H7227-1MG

CAD (KiCad official)

Symbol: H7227-1
Footprint: Package_TO_SOT_SMD:SOT-23
3D model: SOT-23 (KiCad packages3D, STEP)

Provenance

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

Datasheet: Shanghai Siproin Microelectronics datasheet (9 pp, sha256 2df0180fb7063165, 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