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Contents

README

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TPAX809MS3

TECH PUBLIC · Supervisor And Reset ICs · SOT-23

TPAX809MS3 from TECH PUBLIC, in a SOT-23. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 GND power_in Ground pin.
2 RESET output Push-pull reset output that goes low when VDD falls below the reset threshold voltage and goes high only after a delay of at least 140ms once VDD rises back above the threshold.
3 VDD power_in Chip supply and monitored voltage input; absolute maximum -0.3 to +6.0 V relative to ground, operates down to 1V.

Key specifications

Parameter Value
Manufacturer TECH PUBLIC
Package SOT-23
Category Power Management (PMIC)
Pins 3

CAD (KiCad official)

  • Symbol: TPAX809MS3
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: tpax809ms3-etched.step / tpax809ms3-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tpax809ms3.step / tpax809ms3.glb are the bare package body.

Provenance

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

  • Datasheet: TECH PUBLIC datasheet (7 pp, sha256 13adc4e8fcfd779a, retrieved 2026-10-17, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (vision), consensus claude-opus-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF