4-Pin Micropower Voltage Monitors

Low-Power SOT Voltage Monitors

Please check latest availability status for a specific part variant.


The MAX836/MAX837 micropower voltage monitors contain a 1.204V precision bandgap reference and a comparator in a SOT143 package. The MAX836 has an open-drain, N-channel output driver, while the MAX837 has a push-pull output driver. Two external resistors set the trip threshold voltage.
MAX836, MAX837: Typical Operating Circuit MAX836, MAX837: Typical Operating Circuit Enlarge+

Key Features

  • ±1.25% Precision Voltage Threshold
  • SOT143 Package
  • Low Cost
  • < 5µA Typical Supply Current
  • Open-Drain Output (MAX836)
    Push-Pull Output (MAX837)


  • Battery-Powered Systems
  • Load Switching
  • Precision Battery Monitoring
  • Threshold Detectors
Part NumberReset Thresh.
Reset OuttRESETWatchdog FeatureSupervisor FeaturesReset Thresh. Accur.
min@ +25°CmaxSee Notes
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
Active Low
Open Drain
<1msNo Watchdog
Adjustable Reset Input
High Voltage (>6V)
$1.52 @1k
Active Low
$1.55 @1k
See All Supervisors (1 Monitored Voltage) (256)
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Technical Documents

Reference Schematic 3046 All-Ceramic Capacitor Step-Down/Inverter Supplies ±5V at 3A
App Note 2658
App Note 1909 Tiny Light Sensor with Logic Output Draws Less Than 10µA
App Note 1074 DAC and Op Amp Generate Variable Negative Control Voltage

Quality and Environmental Data

Request Reliability Report for: MAX837 
Lead-Free Package Tin (Sn) Whisker Reports
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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