Symbol & Footprint

Schematic Symbol

Open full view ↗

PCB Footprint

Open full view ↗
Contents

README

markdown

CJ809C263M

Changjing · Supervisor and Reset ICs · SOT-23-3L

CJ809C263M from Changjing, in a SOT-23-3L. 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 VSS power_in Ground reference (0 V). Common return for supply and output.
2 VOUT output Voltage detection output pin, CMOS push-pull, active-low. Asserts low when VDD falls below -VDET (2.63 V); returns high after the internal 210 ms (typ) release delay once VDD recovers above -VDET+VHYS.
3 VDD power_in Positive supply and monitored input. Operating range 0.95 V to 7.0 V; absolute max VSS-0.3 V to VSS+8 V.

Key specifications

Parameter Value
Manufacturer Changjing
Package SOT-23-3L
Category PMIC
Pins 3

Ordering variants

Same part, different packaging or reel option.

  • CJ809C263MM
  • CJ809C263MN
  • CJ809C263MP

CAD (KiCad official)

  • Symbol: CJ809C263M
  • Footprint: Package_TO_SOT_SMD:SOT-23-3
  • 3D model: SOT-23-3L (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: Changjing datasheet (7 pp, sha256 4ee2baf6f08f1bd1, 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