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What is a Voltage Supervisor?

A voltage supervisor monitors the supply voltage in embedded circuits and microcontroller systems for abnormal voltage conditions. In the case an abnormal condition is detected, the supervisory circuit resets the controller and keeps it in that state as long as that condition persists.

Types of Voltage Supervisors

There are several different kinds of voltage supervisors. At Future Electronics we stock many of the most common types categorized by Number of Outputs, Reset Timeout, Maximum Supply Voltage, Threshold Voltage and Packaging Type. The parametric filters on our website can help refine your search results depending on the required specifications.

The most common sizes for Maximum Supply Voltage are 5.5 V and 10 V. We also carry voltage supervisors with Maximum Supply Voltage up to 13.3 kV. Reset Timeout can be between 1.5 µs and 1.68 s, with 140 ms and 150 ms being the most common.

Voltage Supervisors from Future Electronics

Future Electronics has a complete selection of voltage supervisors from several manufacturers that can be used for a voltage supervisor IC, supply voltage supervisor, battery voltage monitor, PC voltage monitor, line voltage monitor, motherboard voltage monitor, DC voltage monitor, AC line voltage monitor, computer CPU voltage monitor, low voltage monitor, supervisory circuit or power supply supervisor for any type of energy monitoring circuit. Simply choose from the voltage supervisor technical attributes below and your search results will quickly be narrowed in order to match your specific voltage supervisor application needs.

If you have a preferred brand, we deal with Micrel Semiconductor, Microchip, ON Semiconductor, STMicroelectronics, among others. You can easily refine your voltage supervisor product search results by clicking your preferred voltage supervisor brand below from our list of manufacturers.

Applications for Voltage Supervisors:

Voltage supervisors can be found in:

  • Cellular phones
  • PDAs
  • MP3 players
  • Cordless phones
  • Digital cameras
  • USB appliances
  • Bluetooth devices
  • Industrial controllers
  • Intelligent instruments
  • Power-on reset circuits

Choosing the Right Voltage Supervisor:

When you are looking for the right voltage supervisors, you can filter the results by various attributes with the FutureElectronics.com parametric search: by No of Outputs (up to 5), Maximum Supply Voltage (1.8 V, 5.5 V, 10 V,...) and Reset Timeout (between 1.5 µs and 1.68 s), to name a few. You will be able to find the right device for a supply voltage supervisor IC, battery voltage monitor, line voltage monitor, PC motherboard voltage monitor, AC line voltage monitor, DC voltage monitor, computer CPU voltage monitor, low voltage monitor or power supply supervisor for any type of energy monitoring or supervisory circuit.

Voltage Supervisors in Production Ready Packaging or R&D Quantities

If the quantity of voltage supervisors required is less than a full reel, we offer to customers many of our products in quantities that will help you avoid unneeded surplus.

In addition, Future Electronics offers its clients a unique bonded inventory program designed to eliminate potential problems that could arise from an unpredictable supply of products containing raw metals and products with long or erratic lead times. Talk with your nearest Future Electronics branch so you can find out more on how you can avoid possible shortages.



Featured Voltage Supervisor Products


Manufacturer Part Number Description
Micrel SemiconductorMIC2774N-29YM5 TRMIC2774 Series 2.93 V /Adj 140 ms Dual Micro-Power Voltage Supervisor - SOT-23-5
Micrel SemiconductorMIC2775-29YM5 TRMIC2775 Series 2.93 V 140 ms SMT Micro Power Voltage Supervisor - SOT-23-5
Micrel SemiconductorMIC2776N-YM5 TRMIC2776 Series Adj/Selectable 140 ms Micro-Power Low Voltage Supervisor SOT-23-5
Micrel SemiconductorMIC809-5SYC3 TRMIC809 Series 2.93 V 140 ms Surface Mount Microprocessor Reset Circuit-SC-70-3
Micrel SemiconductorMIC811TUY TRMIC811 Series 4.63V 140 ms Surface Mount Microprocessor Reset Circuit-SOT-143-4
Micrel SemiconductorMIC1232MYMIC1232 Series 4.37 V 250 ms Surface Mount μP Supervisory Circuit - SOIC-8
MicrochipMCP120T-315I/TTMCP120 Series 3.15 V 150 ms Microcontroller Supervisory Circuit - SOT-23-3
MicrochipMCP120T-300I/TTMCP120 Series 3 V 150 ms Microcontroller Supervisory Circuit - SOT-23-3
MicrochipMCP121T-300E/TTMCP121 Series 2.93V 80 ms Surface Mount Micropower Voltage Supervisor SOT23-3
MicrochipMCP100T-450I/TTMCP100 Series 4.5 V 150 ms Microcontroller Supervisory Circuit - SOT-23-3
MicrochipMCP120T-450I/TTMCP120 Series 4.5 V 150 ms Microcontroller Supervisory Circuit - SOT-23-3
MicrochipMCP130T-475I/TTMCP130 Series 4.75 V 150 ms Microcontroller Supervisory Circuit - SOIC-8
MicrochipMCP120T-475I/TTMCP120 Series 4.75 V 150 ms Microcontroller Supervisory Circuit - SOT-23-3
MicrochipMCP130T-270I/TTMCP130 Series 2.7 V 150 ms Microcontroller Supervisory Circuit - SOT-23-3
ON SemiconductorNCP301LSN27T1GNCP301 Series 2.7 V Threshold 10 V Supply Voltage Supervisor Detector - TSOP-5
ON SemiconductorMC33161DR2GMC33161 Series 1.27V Dual Adjustable/Selectable Universal Voltage Monitor-SOIC-8
ON SemiconductorNCP303LSN24T1GNCP303 Series 2.4 V Threshold 10 V Supply Voltage Supervisor Detector - TSOP-5
ON SemiconductorCAT809RTBI-T3CAT809 Series 2.63V 140 ms Microprocessor Power Supply Supervisor - SOT-23-3
ON SemiconductorNCP303LSN27T1GNCP303 Series 2.7 V Threshold 10 V Supply Voltage Supervisor Detector - TSOP-5
STMicroelectronicsSTM6779SWB6FSTM6779 Series 2.925 V/ Adj. 140ms Dual Ultra Low Voltage Supervisor - SOT23-6
STMicroelectronicsSTM6822MWY6FSTM6822 Series 4.39 V 140 ms Supervisor with Watchdog Timer & Push-Button Reset
STMicroelectronicsSTC3100IQTSTC3100 Series 5.5 V Battery Monitor IC with Coulomb Counter/Gas Gauge - DFN-8
STMicroelectronicsSTM704SM6FSTM704 Series 2.925 V 140 ms Supervisor with Battery Switchover - SOIC-8
STMicroelectronicsSTM809TWX6FSTM809 Series 3.08 V 140 ms Surface Mount Reset Circuit - SOT-23
STMicroelectronicsSTM6524ALABDL6F6-pin Smart Reset

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