CN301 from ShangHai Consonance Elec, 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	GND	power_in	Power supply ground (0V reference).
2	VCC	power_in	Positive power supply input. Operating range 1.9V to 6V (abs max 6.5V). Typical supply current 1.8µA at VCC=3V.
3	LBO	output	Battery voltage detection CMOS output. Goes high (VCC-0.4V typ) 60ms after LBI rises above the rising threshold (1.22V typ); goes low immediately (~20µs) when LBI falls below the falling threshold (1.14V typ). Sinks up to 6mA / sources up to 5mA at VCC=5V.
4	LBI	input	Battery voltage detection input. Typically connected to an external resistor divider from the battery. Bias current ±100nA max; thresholds are 1.22V rising / 1.14V falling (typ, ±2%).
5	NC	unconnected	No connection. Leave floating or tie as convenient for routing.

Key specifications

Parameter	Value
Manufacturer	ShangHai Consonance Elec
Package	SOT-23-5
Category	PMIC
Pins	5

CAD (KiCad official)

Symbol: CN301
Footprint: Package_TO_SOT_SMD:SOT-23-5
3D model: SOT-23-5 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`cn301.step`	85 KB	You want the bare part, or you mark your own boards.
`cn301-etched.step`	1.2 MB	You want the part with `CN301` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 293 faces against 102 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

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

Datasheet: ShangHai Consonance Elec datasheet (8 pp, sha256 e53d85895b1992c6, 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