H7210-15M5R 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. Supply voltage 2.5V to 5.5V recommended (absolute max 8V). Requires a 10uF input capacitor (CIN) between VIN and GND placed close to the pin.
2	GND	power_in	Ground reference pin (VSS). Return for both input and output capacitors; keep wiring impedance low between VIN and GND.
3	CE	input	Chip Enable input with CMOS hysteresis. Drive high (to VIN) to enable the regulator; drive low (to VSS) to shut down internal circuitry and, on -33M5R variants, engage the fast-discharge pull-down on VOUT. Do not float.
4	NC	unconnected	No internal connection. May be left floating or tied to GND for mechanical stability.
5	VOUT	power_out	Regulated output pin. Delivers the trimmed output voltage (1.5V for -15M5R) at up to ~500mA typ. Requires a ≥10uF low-ESR ceramic output capacitor (COUT) placed close to the pin and GND.

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.

H7210-15M5R

CAD (KiCad official)

Symbol: H7210-15M5R
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 (6 pp, sha256 d68700857f3166ee, 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