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Contents

README

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MAX803ZEXR+T

Maxim Integrated · Monitors & Reset Circuits · SC-70-3

MAX803ZEXR+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.
2 RESET output Open-drain active-low reset output (MAX803) that remains low while VCC is below the reset threshold and for at least 140ms after VCC rises above it; requires a pullup resistor to any supply between 0 and 6V.
3 VCC power_in Supply voltage (+5V, +3.3V, +3.0V, or +2.5V) monitored by the reset circuit; absolute maximum -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 VCC 1.2 5.5 V TA = -40°C to +125°C (MAX8_ _ _EXR) 2
VCC Range VCC 1 5.5 V TA = 0°C to +70°C 2
Supply Current (SC70) ICC 17 30 µA TA = -40°C to +85°C, VCC < 3.6V, MAX8_ _R/S/T/Z 2
Supply Current (SC70) ICC 60 µA TA = +85°C to +125°C, VCC < 3.6V, MAX8_ _R/S/T/Z 2
Reset Threshold (SC70) MAX8_ _Z VTH 2.28 2.32 2.35 V TA = +25°C 3
Reset Threshold (SC70) MAX8_ _Z VTH 2.25 2.38 V TA = -40°C to +85°C 3
Reset Threshold (SC70) MAX8_ _Z VTH 2.22 2.42 V TA = -40°C to +125°C 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 VOL 0.3 V VCC = VTH (min), ISINK = 1.2mA, MAX803R/S/T/Z 3
RESET Open-Drain Output Leakage Current 1 µA VCC > VTH, RESET deasserted (Note 3) 4
Reset Threshold Tempco 30 ppm/°C 3
VCC to Reset Delay 20 µs VCC = VTH to (VTH - 100mV) 3
Terminal Voltage VCC VCC -0.3 6 V with respect to GND 2
Terminal Voltage RESET (open drain) RESET -0.3 6 V with respect to GND 2
Input Current, VCC 20 mA 2
Output Current, RESET 20 mA 2
Rate of Rise, VCC 100 V/µs 2
Operating Temperature Range 3-Pin SC70 -40 125 °C 2
Storage Temperature Range -65 150 °C 2
Lead Temperature 300 °C soldering, 10s 2
Soldering Temperature 260 °C reflow 2

CAD (KiCad official)

  • Symbol: MAX803ZEXR+T
  • Footprint: Package_TO_SOT_SMD:SOT-323_SC-70
  • 3D model: SC-70-3 (KiCad packages3D, STEP)
  • 3D model files: max803zexr-t-etched.step / max803zexr-t-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); max803zexr-t.step / max803zexr-t.glb are the bare package body.

Provenance

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

  • Datasheet: Maxim Integrated datasheet (8 pp, sha256 10caf212e77acdb6, retrieved 2026-11-02, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text), consensus claude-opus-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