HG7150M3-1 from HGSEMI, in a SOT-23-3. 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	GND	power_in	Ground reference for the regulator. Connect to the system single-point ground and to the negative terminal of the input and output decoupling capacitors.
2	VIN	power_in	Unregulated input supply pin. Absolute maximum rating is -0.3 V to +36 V. Bypass to GND with a ≥10 uF (recommended) polarized capacitor placed close to the pin.
3	VOUT	power_out	Regulated +5.0 V output (±2%). Delivers up to 100 mA min / 150 mA typ. Requires an output capacitor >2.2 uF to GND for phase compensation via ESR; 10 uF recommended and placed close to the pin.

Key specifications

Parameter	Value
Manufacturer	HGSEMI
Package	SOT-23-3
Category	PMIC
Pins	3

Ordering variants

Same part, different packaging or reel option.

HG7150M3-1/TR
HG7150M3-1MK-1/TR
HG7150M3-1Z-1

CAD (KiCad official)

Symbol: HG7150M3-1
Footprint: Package_TO_SOT_SMD:SOT-23-3
3D model: SOT-23-3 (KiCad packages3D, STEP)

Provenance

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

Datasheet: HGSEMI datasheet (10 pp, sha256 42ec7ac3544efb05, retrieved 2026-08-17, tier: lcsc)
Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
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