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MAX803REXR+T
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Maxim Integrated Monitors & Reset Circuits, SC-70-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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MAX803REXR+T
Maxim Integrated · Monitors & Reset Circuits · SC-70-3
MAX803REXR+T from Maxim Integrated, 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 supervisor; the absolute maximum ratings for VCC and RESET are specified with respect to GND. |
| 2 | RESET | output | Open-drain active-low reset output (MAX803) that stays low while VCC is below the reset threshold and for at least 140ms after VCC rises above it, requiring an external pullup that may connect to any supply between 0V and 6V, with an absolute maximum of -0.3V to +6.0V and 20mA output current. |
| 3 | VCC | power_in | Monitored supply voltage (+5V, +3.3V, +3.0V, or +2.5V) with an operating range of 1.2V to 5.5V over -40°C to +125°C and an absolute maximum of -0.3V to +6.0V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Maxim Integrated |
| Package | SC-70-3 |
| Category | Power Management ICs |
| 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 = -40°C to +125°C, MAX8__EXR) | VCC | 1.2 | 5.5 | V | TA = -40°C to +125°C (MAX8__EXR) | 2 | |
| Supply Current (SC70) | ICC | 17 | 30 | µA | VCC < 3.6V, MAX8__R/S/T/Z, TA = -40°C to +85°C | 2 | |
| Supply Current (SC70) | ICC | 60 | µA | VCC < 3.6V, MAX8__R/S/T/Z, TA = +85°C to +125°C | 2 | ||
| Reset Threshold (SC70 only), MAX8__R | VTH | 2.59 | 2.63 | 2.66 | V | MAX8__R, TA = +25°C | 3 |
| Reset Threshold (SC70 only), MAX8__R | VTH | 2.55 | 2.7 | V | MAX8__R, TA = -40°C to +85°C | 3 | |
| Reset Threshold (SC70 only), MAX8__R | VTH | 2.52 | 2.74 | V | MAX8__R, TA = -40°C to +125°C | 3 | |
| Reset Threshold Tempco | VTH | 30 | ppm/°C | 3 | |||
| VCC to Reset Delay | 20 | µs | VCC = VTH to (VTH - 100mV) | 3 | |||
| Reset Active Timeout Period (SC70) | 140 | 240 | 460 | ms | TA = -40°C to +85°C | 3 | |
| Reset Active Timeout Period (SC70) | 100 | 840 | ms | TA = +85°C to +125°C | 3 | ||
| RESET Output Voltage Low (open-drain active low, MAX803R) | VOL | 0.3 | V | VCC = VTH (min), ISINK = 1.2mA, MAX803R/S/T/Z | 3 | ||
| RESET Open-Drain Output Leakage Current (MAX803) | 1 | µA | VCC > VTH, RESET deasserted (Note 3: guaranteed by design, not production tested) | 4 | |||
| VCC Supply Voltage (absolute maximum) | VCC | -0.3 | 6 | V | Terminal voltage with respect to GND | 2 | |
| RESET Terminal Voltage, open drain (MAX803) | RESET | -0.3 | 6 | V | Open drain, with respect to GND | 2 | |
| Input Current, VCC | VCC | 20 | mA | 2 | |||
| Output Current, RESET | RESET | 20 | mA | 2 | |||
| Rate of Rise, VCC | VCC | 100 | V/µs | 2 | |||
| Derating, 3-Pin SC70 power dissipation | 2.17 | mW/°C | Derate above TA = +70°C | 2 | |||
| Operating Temperature Range (3-Pin SC70) | TA | -40 | 125 | °C | 3-Pin SC70 | 2 | |
| Storage Temperature Range | TSTG | -65 | 150 | °C | 2 | ||
| Lead Temperature (soldering, 10s) | 300 | °C | Soldering, 10s | 2 | |||
| Soldering Temperature (reflow) | 260 | °C | Reflow | 2 |
CAD (KiCad official)
- Symbol:
MAX803REXR+T - Footprint:
Package_TO_SOT_SMD:SOT-323_SC-70 - 3D model: SC-70-3 (KiCad packages3D, STEP)
- 3D model files:
max803rexr-t-etched.step/max803rexr-t-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);max803rexr-t.step/max803rexr-t.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Maxim Integrated datasheet (8 pp, sha256
10caf212e77acdb6, retrieved 2026-10-29, tier: manufacturer) - 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).
# MAX803REXR+T
**Maxim Integrated** · Monitors & Reset Circuits · SC-70-3
MAX803REXR+T from Maxim Integrated, 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 supervisor; the absolute maximum ratings for VCC and RESET are specified with respect to GND. |
| 2 | RESET | output | Open-drain active-low reset output (MAX803) that stays low while VCC is below the reset threshold and for at least 140ms after VCC rises above it, requiring an external pullup that may connect to any supply between 0V and 6V, with an absolute maximum of -0.3V to +6.0V and 20mA output current. |
| 3 | VCC | power_in | Monitored supply voltage (+5V, +3.3V, +3.0V, or +2.5V) with an operating range of 1.2V to 5.5V over -40°C to +125°C and an absolute maximum of -0.3V to +6.0V. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Maxim Integrated |
| Package | SC-70-3 |
| Category | Power Management ICs |
| 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 = -40°C to +125°C, MAX8__EXR) | VCC | 1.2 | | 5.5 | V | TA = -40°C to +125°C (MAX8__EXR) | 2 |
| Supply Current (SC70) | ICC | | 17 | 30 | µA | VCC < 3.6V, MAX8__R/S/T/Z, TA = -40°C to +85°C | 2 |
| Supply Current (SC70) | ICC | | | 60 | µA | VCC < 3.6V, MAX8__R/S/T/Z, TA = +85°C to +125°C | 2 |
| Reset Threshold (SC70 only), MAX8__R | VTH | 2.59 | 2.63 | 2.66 | V | MAX8__R, TA = +25°C | 3 |
| Reset Threshold (SC70 only), MAX8__R | VTH | 2.55 | | 2.7 | V | MAX8__R, TA = -40°C to +85°C | 3 |
| Reset Threshold (SC70 only), MAX8__R | VTH | 2.52 | | 2.74 | V | MAX8__R, TA = -40°C to +125°C | 3 |
| Reset Threshold Tempco | VTH | | 30 | | ppm/°C | | 3 |
| VCC to Reset Delay | | | 20 | | µs | VCC = VTH to (VTH - 100mV) | 3 |
| Reset Active Timeout Period (SC70) | | 140 | 240 | 460 | ms | TA = -40°C to +85°C | 3 |
| Reset Active Timeout Period (SC70) | | 100 | | 840 | ms | TA = +85°C to +125°C | 3 |
| RESET Output Voltage Low (open-drain active low, MAX803R) | VOL | | | 0.3 | V | VCC = VTH (min), ISINK = 1.2mA, MAX803R/S/T/Z | 3 |
| RESET Open-Drain Output Leakage Current (MAX803) | | | | 1 | µA | VCC > VTH, RESET deasserted (Note 3: guaranteed by design, not production tested) | 4 |
| VCC Supply Voltage (absolute maximum) | VCC | -0.3 | | 6 | V | Terminal voltage with respect to GND | 2 |
| RESET Terminal Voltage, open drain (MAX803) | RESET | -0.3 | | 6 | V | Open drain, with respect to GND | 2 |
| Input Current, VCC | VCC | | | 20 | mA | | 2 |
| Output Current, RESET | RESET | | | 20 | mA | | 2 |
| Rate of Rise, VCC | VCC | | | 100 | V/µs | | 2 |
| Derating, 3-Pin SC70 power dissipation | | | 2.17 | | mW/°C | Derate above TA = +70°C | 2 |
| Operating Temperature Range (3-Pin SC70) | TA | -40 | | 125 | °C | 3-Pin SC70 | 2 |
| Storage Temperature Range | TSTG | -65 | | 150 | °C | | 2 |
| Lead Temperature (soldering, 10s) | | | | 300 | °C | Soldering, 10s | 2 |
| Soldering Temperature (reflow) | | | | 260 | °C | Reflow | 2 |
## CAD (KiCad official)
- Symbol: `MAX803REXR+T`
- Footprint: `Package_TO_SOT_SMD:SOT-323_SC-70`
- 3D model: SC-70-3 (KiCad packages3D, STEP)
- 3D model files: `max803rexr-t-etched.step` / `max803rexr-t-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `max803rexr-t.step` / `max803rexr-t.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Maxim Integrated datasheet](https://www.analog.com/media/en/technical-documentation/data-sheets/max803-max810z.pdf) (8 pp, sha256 `10caf212e77acdb6`, retrieved 2026-10-29, tier: manufacturer)
- **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](docs/max803rexr-t-datasheet.pdf)