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Manufacturer Part #


MAX803 Series 3.08 V 460 ms SMT Open Drain Simple Reset/Power On Reset - SOT-323

Product Specification Section
Technical Attributes
Attributes Table
Type: Simple Reset/Power On Reset
No of Outputs: Single
Threshold Voltage: 3.08V
Supply Voltage-Max: 6V
Reset Timeout: 460ms
Output Type: Open Drain
No. of Monitors: 1
Supply Current-Max: 2.5µA
Output Voltage: -0.3V to +6.3V
Output Current: 20mA
Operating Temp Range: -40°C to +125°C
Storage Temperature Range: -65°C to +150°C
Moisture Sensitivity Level: 1
Package Style:  SOT-323 (SC-70)
Mounting Method: Surface Mount
Features & Applications

The MAX803 is a cost−effective system supervisor circuit designed to monitor VCC in digital systems and provide a reset signal to the host processor when necessary. No external components are required.

The reset output is driven active within 10 µsec of VCC falling through the reset voltage threshold. Reset is maintained active for a timeout period which is trimmed by the factory after VCC rises above the reset threshold. The MAX803/NCP803 has an open drain active−low RESET output. Both devices are available in SOT−23 and SC−70 packages. The MAX803/NCP803 is optimized to reject fast transient glitches on the VCC line. Low supply current of 0.5 µA (VCC = 3.2 V) make these devices suitable for battery powered applications.

Key Features:

  • Precision VCC Monitor for 1.5 V, 2.5 V, 3.0 V, 3.3 V, and 5.0 V Supplies
  • Precision Monitoring Voltages from 1.2 V to 4.9 V Available in 100 mV Steps
  • Four Guaranteed Minimum Power−On Reset Pulse Width Available (1 ms, 20 ms, 100 ms, and 140 ms)
  • RESET Output Guaranteed to VCC = 1.0 V
  • Low Supply Current
  • VCC Transient Immunity
  • No External Components
  • Wide Operating Temperature: −40°C to 105°C
  • Pb−Free Packages are Available


  • Computers
  • Embedded Systems
  • Battery Powered Equipment
  • Critical Microprocessor Power Supply Monitoring
Pricing Section
Minimum Order:
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Factory Stock:Factory Stock:
Factory Lead Time:
4 Weeks
Web Price