CN809M from ShangHai Consonance Elec, 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 device.
2	RESET	output	Active-low CMOS reset output. Driven low when VCC falls below the 4.38 V reset threshold; remains low for at least 140 ms after VCC rises above VRES + VHYST, then transitions high. Drives 0.3 V max at ISINK up to 5 mA (VCC=4 V) and VCC-0.4 V min at ISRC up to 2.5 mA (VCC=5 V).
3	VCC	power_in	Positive supply input; also the voltage being monitored for the reset threshold comparison. Operating range 1.15 V (min output valid) to 5.5 V (absolute max 6.0 V). Typical IVCC = 3.2 µA at VCC = 3 V.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

CN809M

CAD (KiCad official)

Symbol: CN809M
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: ShangHai Consonance Elec datasheet (7 pp, sha256 bbeb80fd1a0c3663, 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