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MAX809S-JSM

Public Made by Adom

by adom

JSMSEMI MAX809S Supervisor and Reset ICs, SOT-23-3. 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

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MAX809S-JSM

JSMSEMI MAX809S · Supervisor and Reset ICs · SOT-23-3

MAX809S-JSM from JSMSEMI MAX809S, in a SOT-23-3. 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. All voltages are measured with respect to this pin.
2 RESET output Active-low push-pull reset output. RESET is driven low when VDD drops below the reset threshold (VRST, typ. 2.93 V for the S variant) and is held low for at least 140 ms (typ. 240 ms, max 560 ms) after VDD rises back above VRST. Drives VOL ≤ 0.3 V sinking up to 5 mA and VOH ≥ VDD-0.4 V sourcing up to 2.5 mA.
3 VDD power_in Chip supply pin and the monitored voltage input. Operating range 1.0 V to 5.5 V; typical supply current 8-14 µA over 2-5 V. Absolute maximum 6.0 V vs. GND; VDD slew-rate limit 100 V/s. A local decoupling capacitor placed close to this pin improves glitch rejection.

Key specifications

Parameter Value
Manufacturer JSMSEMI MAX809S
Package SOT-23-3
Category PMIC
Pins 3

Ordering variants

Same part, different packaging or reel option.

  • MAX809S-JSM

CAD (KiCad official)

  • Symbol: MAX809S-JSM
  • Footprint: Package_TO_SOT_SMD:SOT-23-3
  • 3D model: SOT-23-3 (KiCad packages3D, STEP)
  • 3D model files: max809s-jsm-etched.step / max809s-jsm-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); max809s-jsm.step / max809s-jsm.glb are the bare package body.

Provenance

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

  • Datasheet: JSMSEMI MAX809S datasheet (7 pp, sha256 e25b22fa7bf8a8b5, 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