MIC5205M5-ADJ from HGSEMI, 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	IN	power_in	Supply Input. Operating input voltage range +2.5V to +16V; absolute maximum -20V to +20V.
2	GND	power_in	Ground reference for the regulator.
3	EN	input	Enable/Shutdown (Input). CMOS/TTL compatible; logic high (VIH >= 2.0V) enables the regulator, logic low or open (VIL <= 0.4V) puts the device into shutdown. Absolute maximum -20V to +20V. May be tied directly to IN for always-on operation.
4	ADJ	input	Adjust (Input): Adjustable regulator feedback input. Connect to an external resistor voltage divider from OUT to GND to program the output voltage.
5	OUT	power_out	Regulator Output. Guaranteed 150mA output current. Requires an external output capacitor (>= 1uF basic, >= 2.2uF low-noise operation).

Key specifications

Parameter	Value
Manufacturer	HGSEMI
Package	SOT-23-5
Category	PMIC
Pins	5

Ordering variants

Same part, different packaging or reel option.

MIC5205M5-ADJ/TR

CAD (KiCad official)

Symbol: MIC5205M5-ADJ
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: HGSEMI datasheet (13 pp, sha256 bdbb9e2304d4784d, 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