APX809-44SAG-7 from Diodes Incorporated, 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 supervisor. 0V return for VCC and the push-pull RESET output stage.
2	/RESET	output	Active-low push-pull reset output (APX809 variant). Driven low whenever VCC is below the 4.38V threshold and held low for the reset timeout period (200ms typ, 140-280ms) after VCC rises above threshold. VOL <= 0.3V at ISINK=1.2mA; VOH >= 0.8*VCC at ISOURCE=500µA. Guaranteed valid down to VCC=1V.
3	VCC	power_in	Operating voltage input, monitored against the internal 4.38V reset threshold (APX809-44 option). Recommended operating range 1.1V to 5.5V; absolute max 6.0V. Recommended 100nF decoupling capacitor to GND.

Key specifications

Parameter	Value
Manufacturer	Diodes Incorporated
Package	SOT-23
Category	PMIC
Pins	3

Ordering variants

Same part, different packaging or reel option.

APX809-44SAG-7
APX810-44SAG-7
APX809-44SRG-7
APX810-44SRG-7

CAD (KiCad official)

Symbol: APX809-44SAG-7
Footprint: Package_TO_SOT_SMD:SOT-23
3D model: SOT-23 (KiCad packages3D, STEP)

Provenance

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

Datasheet: Diodes Incorporated datasheet (8 pp, sha256 6cea3bdb5cde9297, 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