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TPAX809SS3

Public Made by Adom

by adom

TECH PUBLIC Supervisor and Reset ICs, SOT-23. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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3D Model

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Symbol & Footprint

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Datasheet

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Contents

README

markdown

TPAX809SS3

TECH PUBLIC · Supervisor and Reset ICs · SOT-23

TPAX809SS3 from TECH PUBLIC, 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 pin (0 V). Connect to system ground.
2 RESET output Push-pull reset output. Drives low when VDD drops below the reset threshold voltage (VRST, 2.93 V typ. for SS3). Returns high at least 140 ms after VDD rises back above VRST. VOL <= 0.3 V sinking up to 5 mA; VOH >= VDD-0.4 V sourcing up to 2.5 mA.
3 VDD power_in Chip supply and monitored voltage input. Operating range 1.0 V to 5.5 V; supply current 8-14 uA typical. Also serves as the voltage being supervised for the reset threshold comparison.

Key specifications

Parameter Value
Manufacturer TECH PUBLIC
Package SOT-23
Category PMIC
Pins 3

Ordering variants

Same part, different packaging or reel option.

  • TPAX809SS3
  • TPAX809SS3RS3
  • TPAX809SS3TS3
  • TPAX809SS3JS3
  • TPAX809SS3MS3
  • TPAX809SS3LS3

CAD (KiCad official)

  • Symbol: TPAX809SS3
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: tpax809ss3-etched.step / tpax809ss3-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tpax809ss3.step / tpax809ss3.glb are the bare package body.

Provenance

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

  • Datasheet: TECH PUBLIC datasheet (7 pp, sha256 05e21013dc166da0, 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