CN809S from ShangHai Consonance Elec, 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	GND	power_in	Ground reference for the device.
2	RESET	output	Active-low CMOS reset output. Driven low when VCC falls below the 2.93V reset threshold, and held low for at least 140 ms (typ 240 ms) after VCC rises above VRES + VHYST before returning high. Rated up to 20 mA; VOL <= 0.3V at ISINK up to 5 mA.
3	VCC	power_in	Positive supply input. Powers the internal circuitry and is the monitored voltage. Operating range 1.15V (minimum for valid output) up to 5.5V absolute maximum; typical IVCC = 3.2 µA at 3V. A 0.1 µF bypass capacitor near this pin is recommended.

Key specifications

Parameter	Value
Manufacturer	ShangHai Consonance Elec
Package	SOT-23
Category	PMIC
Pins	3

Ordering variants

Same part, different packaging or reel option.

CN809S

CAD (KiCad official)

Symbol: CN809S
Footprint: Package_TO_SOT_SMD:SOT-23
3D model: SOT-23 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`cn809s.step`	59 KB	You want the bare part, or you mark your own boards.
`cn809s-etched.step`	1.5 MB	You want the part with `CN809S` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 359 faces against 69 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 (7 pp, sha256 4105c79299e10a52, 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