component
MAX809SQ308T1G
Public Made by Adomby adom
onsemi Supervisor And Reset ICs, SC-70-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownMAX809SQ308T1G
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.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);max809sq308t1g.step/max809sq308t1g.glbare 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, primaryclaude-haiku-5-5(text), consensusclaude-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).