H8116A36NR 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	VOUT	power_out	Regulated boost output voltage pin. Set to 3.6V for the 'A36' option (2.1V-5.5V family range, ±2%). Also serves as the internal feedback sense node and supplies the chip once boosted. Connect an output capacitor from this pin to VSS.
2	VSS	power_in	Ground / negative supply reference for the converter. All input and output capacitors return here.
3	LX	power_out	Switching node for the external inductor. Connect the inductor between VIN and LX; internal synchronous MOSFETs switch this node to boost VIN to VOUT. Absolute max VSS-0.3V to VSS+8V, peak switch current 1000 mA. An internal protection circuit turns off the MOSFET when LX exceeds the limit.

Key specifications

Parameter	Value
Manufacturer	Shanghai Siproin Microelectronics
Package	SOT-23
Category	PMIC
Pins	3

Ordering variants

Same part, different packaging or reel option.

H8116A36NRN
H8116A36NRM
H8116A36NRT

CAD (KiCad official)

Symbol: H8116A36NR
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 (7 pp, sha256 5d3d0e99e22fc46c, 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