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Voltage supervisors monitor the supply voltages of a microprocessor-based system to ensure that the system starts up properly every time, that system errors are detected and and minimized, and that the system returns safely from an error with little or no user intervention. Power supply sequencers enable/disable the power supplies in order at power-up and power-down. Voltage monitors continuously check the power-supply output voltages and currents for over and under threshold levels. If a fault is detected, the supervisory IC automatically shuts down the system in an orderly fashion.

Sequencers and Voltage Trackers
Power supply sequencing and voltage tracking ICs control power-up and power-down sequencing.
Battery-Backup ICs
Supervisor ICs with battery backup management and memory-write protection.
Regulators with Integrated Reset
Linear low dropout voltage regulators with integrated reset circuits.
Multivoltage Monitors
Monitor up to eight voltages with one device with industry-leading accuracy specifications.
Watchdog Timers
Watchdog timers monitor and minimize code execution errors in microcontroller designs.
Voltage Detectors and Battery Monitors
Voltage detector and battery monitor ICs addressing low power and current, extreme temperature, and high voltage applications.

Technical Documentation

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Featured Videos


Overview of Voltage References and Supervisors
11:42 January 25, 2018


Monitoring Multiple Voltages and Setting Up Power-Up/Down Sequencing with the MAX16050/MAX16051
12:22 August 07, 2018

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MAX16126
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MAX16134
±1% accurate three-channel supervisor in small SOT23 monitors up to 4 system-supply voltages for...

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Reference Designs

Reference Design for a Class D, 2.1-Channel, Audio Amplifier for an MP3 Docking Station
This reference design demonstrates the MAX98400 Class D audio amplifier in a stereo audio dockin...
Modern Thermocouples and a High-Resolution Delta-Sigma ADC Enable High-Precision Temperature Measurement
Article discusses high-performance temperature measurement using standardized thermocouples and ...
Boost Backlight LED Driver
A LED display backlight driver using a boost switching power supply and linear current sinks for...
Circuit Enables Single NiMH Cell to Simulate a Lithium Battery
Circuit enables single NiMH cell to simulate lithium battery
Handy Circuit Gives Systems Flexible Fault Protection
Application circuit shows a simple method for protecting system against fault condition when boa...
Overcurrent Monitor Operates up to 26V
This circuit provides overcurrent protection for supply-rail voltages to +26V.