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MAX809SQ308T1G

Public Made by Adom

by adom

onsemi Supervisor And Reset ICs, SC-70-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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MAX809SQ308T1G

onsemi · Supervisor And Reset ICs · SC-70-3

MAX809SQ308T1G from onsemi, in a SC-70-3. 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 supply monitor and reset output circuitry.
2 RESET output Active-low reset output for the MAX809 (RESET stays low while VCC is below the reset threshold and for the reset timeout period after VCC rises above it), valid down to VCC = 1.0 V, with a 20 mA maximum output current rating.
3 VCC power_in Supply voltage input that is monitored against the reset threshold; the absolute maximum rating is -0.3 V to 6.0 V and the electrical characteristics specify VCC from 1.0 V to 5.5 V.

Key specifications

Parameter Value
Manufacturer onsemi
Package SC-70-3
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 (TA = 0°C to +70°C) VCC 1 5.5 V TA = 0°C to +70°C 4
VCC Range (TA = −40°C to +105°C, Note 4) VCC 1.2 5.5 V TA = −40°C to +105°C 4
Supply Current ICC 0.5 0.8 µA VCC = 3.3 V, TA = −40°C to +85°C 4
Supply Current ICC 1.2 µA VCC = 3.3 V, TA = 85°C to +105°C (Note 5) 4
Reset Threshold (Vin Decreasing), MAX809SQ308 VTH 3.04 3.08 3.11 V TA = +25°C 4
Reset Threshold (Vin Decreasing), MAX809SQ308 VTH 3 3.16 V TA = −40°C to +85°C 4
Reset Threshold (Vin Decreasing), MAX809SQ308 VTH 2.92 3.24 V TA = +85°C to +105°C (Note 5) 4
RESET Output Voltage Low (No Load) (MAX809) VOL 0.3 V VCC = VTH − 0.2 V; 2.1 V ≤ VTH ≤ 4.0 V, ISINK = 1.2 mA 5
RESET Output Voltage High (No Load) (MAX809) VOH 0.8 VCC VCC = VTH + 0.2 V; 2.5 V ≤ VTH ≤ 4.9 V, ISOURCE = 500 µA 5
Reset Active TimeOut Period (MAX8xxSN(Q)293 base option, 140-460 ms) tRP 140 460 msec Note 8 5
Detector Voltage Threshold Temperature Coefficient 30 ppm/°C 5
VCC to Reset Delay 10 sec VCC = VTH to (VTH − 100 mV) 5
Power Supply Voltage (VCC to GND) VCC -0.3 6 V 3
RESET Output Voltage (CMOS) -0.3 V Upper limit printed as (VCC + 0.3) 3
Input Current, VCC 20 mA 3
Output Current, RESET 20 mA 3
dV/dt (VCC) dV/dt 100 V/sec 3
ESD Protection, Human Body Model (HBM) 2000 V JESD22-A114 3
ESD Protection, Machine Model (MM) 200 V JESD22-A115 3
Latchup Current, Positive ILatchup 200 mA JESD78 Class II 3
Latchup Current, Negative ILatchup 200 mA JESD78 Class II 3
Operating Junction Temperature Range TJ -40 125 °C 3
Storage Temperature Range Tstg -65 150 °C 3
Lead Temperature (Soldering) Tsol 260 °C 10 seconds 3
Thermal Resistance, Junction-to-Air, SC-70 RJA 314 °C/W SC-70 package, Note 1 (35x35x1.6 mm FR4 PCB, 10 mm² 1 oz copper) 3
Operating Ambient Temperature Range TA -40 105 °C Per Electrical Characteristics header (TA = −40°C to +105°C) 4

CAD (KiCad official)

  • Symbol: MAX809SQ308T1G
  • Footprint: Package_TO_SOT_SMD:SOT-323_SC-70
  • 3D model: SC-70-3 (KiCad packages3D, STEP)
  • 3D model files: max809sq308t1g-etched.step / max809sq308t1g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); max809sq308t1g.step / max809sq308t1g.glb are the bare package body.

Provenance

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

  • Datasheet: onsemi datasheet (13 pp, sha256 d8c68d6a899f2fa8, retrieved 2026-10-16, 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