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Contents

README

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LP3809-263B3F

LOWPOWER · Supervisor and Reset ICs · SOT-23

LP3809-263B3F from LOWPOWER, 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 VSS power_in Ground reference pin. Connect to system GND (0 V).
2 Vout output Voltage-detection output pin. CMOS push-pull output (Nch pull-down and Pch pull-up per block diagram). Drives low when VDD falls below the 2.63V detection threshold and returns high after VDD rises above the threshold plus ~108 mV hysteresis and the 240 ms internal delay expires. Absolute max output voltage -0.3V to 6V; max output current 60 mA.
3 VDD power_in Supply / monitored voltage input pin. Operating range 0.9V to 5.5V; absolute max -0.3V to 6V. This is the voltage being monitored against the 2.63V detection threshold.

Key specifications

Parameter Value
Manufacturer LOWPOWER
Package SOT-23
Category PMIC
Pins 3

Ordering variants

Same part, different packaging or reel option.

  • LP3809-263B3F

CAD (KiCad official)

  • Symbol: LP3809-263B3F
  • 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: LOWPOWER datasheet (6 pp, sha256 5c42f5f7a3531785, 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