H7211-15M5R from Shanghai Siproin Microelectronics, in a SOT-23-5. 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	Power input pin. Accepts 2.0 V to 6.0 V (absolute max -0.3 to 7 V). Bypass with a low-ESR ceramic capacitor (typ. 10 µF) to VSS close to the pin.
2	VSS	power_in	Device ground return. Common reference for VIN, VOUT, and CE.
3	CE	input	Chip Enable. Drive high (VCE'H' ≥ 1.5 V up to VIN) to enable the regulator; drive low (VCE'L' ≤ 0.3 V) to enter shutdown (<0.1 µA) and activate the internal 80 Ω Cout discharge shunt.
4	NC	unconnected	No connection. Leave floating or tie to ground; not internally bonded on the SOT23-5 package.
5	VOUT	power_out	Regulated output. Delivers up to 300 mA at the factory-set output voltage (1.0-5.0 V, ±2 % tolerance; -15M5R suffix = 1.5 V nominal). Requires a low-ESR ceramic output capacitor (typ. 10 µF) to VSS.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

H7211-15M5R
H7211-15M5RDR

CAD (KiCad official)

Symbol: H7211-15M5R
Footprint: Package_TO_SOT_SMD:SOT-23-5
3D model: SOT-23-5 (KiCad packages3D, STEP)

Provenance

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

Datasheet: Shanghai Siproin Microelectronics datasheet (9 pp, sha256 b0219dac2623b496, 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