component

MAX809J

Public Made by Adom

by adom

TECH PUBLIC Supervisor and Reset ICs, SOT-23. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs max809j: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
viewers pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray
max809j-etched.fit.json max809j: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
max809j-etched.glb max809j: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
max809j-etched.step max809j: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
max809j.glb Publish 0.1.0 · Ray
max809j.kicad_mod Publish 0.1.0 · Ray
max809j.kicad_sym Publish 0.1.0 · Ray
max809j.lbr rebuild the library on adom-lbr 2.32.0. The published copy was built by 2.18.0, which imported every KiCad roundrect an… · Ray
max809j.step Publish 0.1.0 · Ray
package.json Publish 0.2.0 · Ray
pads.json pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray
page.json max809j: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) · Ray
README.md max809j: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray

MAX809J

TECH PUBLIC · Supervisor and Reset ICs · SOT-23

MAX809J 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. Connect to system ground.
2 RESET output Active-low reset output (push-pull). Drives low when VDD falls below the reset threshold (J = 4.00 V typ, 3.92 V min / 4.08 V max at 25 degC). Returns high after VDD recovers above the threshold and the reset timeout (TR, 240 ms typ, 140 ms min) elapses. VOL <= 0.3 V, VOH >= VDD-0.4 V; output current rated up to 20 mA.
3 VDD power_in Chip supply and monitored voltage input. Operating range 1.0 V to 5.5 V (absolute max +6.0 V). Typical supply current 8-14 uA over 2-5 V. This is the node compared to the internal reference to generate RESET.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

  • MAX809J

CAD (KiCad official)

  • Symbol: MAX809J
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: max809j-etched.step / max809j-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); max809j.step / max809j.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
max809j.step 59 KB You want the bare part, or you mark your own boards.
max809j-etched.step 1.4 MB You want the part with MAX809J already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 349 faces against 69 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

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

  • Datasheet: TECH PUBLIC datasheet (7 pp, sha256 bf42717802d474fe, 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