component

CAT809RTBI-GT3

Public Made by Adom

by adom

onsemi Supervisor And Reset ICs, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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CAT809RTBI-GT3

onsemi · Supervisor And Reset ICs · SOT-23

CAT809RTBI-GT3 from onsemi, 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 reference for the supervisor.
2 RESET output Push-pull active LOW reset output for the CAT809; it is asserted if VCC falls below the reset threshold and remains low for at least 140 ms after VCC rises above the reset threshold.
3 VCC power_in Power supply voltage that is monitored; reset is valid down to VCC = 1.0 V, with an operating range of 1.2 V to 5.5 V over −40 °C to +85 °C.

Key specifications

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

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
VCC Range VCC 1 5.5 V TA = 0°C to +70°C 4
VCC Range VCC 1.2 5.5 V TA = −40°C to +85°C 4
Supply Current ICC 6 15 A TA = −40°C to +85°C, VCC < 3.6 V, R/S/T/Z/V 4
Reset Threshold Voltage (R Threshold) VTH 2.59 2.63 2.66 V TA = +25°C 4
Reset Threshold Voltage (R Threshold) VTH 2.55 2.7 V TA = −40°C to +85°C 4
Reset Active Timeout Period TR 140 240 460 ms TA = −40°C to +85°C 4
RESET Output Voltage Low (push-pull, active LOW, CAT809) VOL 0.3 V VCC = VTH min, ISINK = 1.2 mA, CAT809R/S/T/Z/V 4
Operating Temperature Range -40 85 °C 2
Any pin with respect to ground -0.3 6 V 2
Input Current, VCC 20 mA 2
Output Current, RESET, RESET 20 mA 2
Rate of Rise, VCC 100 V/s 2
Continuous Power Dissipation (SOT23) 320 mW SOT23; derate 4 mW/°C above 70°C 2
Storage Temperature Range -65 105 °C 2
Lead Soldering Temperature 300 °C 10 sec 2

CAD (KiCad official)

  • Symbol: CAT809RTBI-GT3
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: cat809rtbi-gt3-etched.step / cat809rtbi-gt3-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); cat809rtbi-gt3.step / cat809rtbi-gt3.glb are the bare package body.

Provenance

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

  • Datasheet: onsemi datasheet (11 pp, sha256 783f5e33fb6c9ef4, retrieved 2026-10-19, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-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