Micrel – MIC2790/1/3 Supervisor with High Accuracy, Ultra Fast Propagation Delay, and Capacitor Programmable Reset Delay





The MIC2790/1/3 is a high accuracy supervisor circuit with an ultra fast response, a manual reset input pin, and a capacitor-programmable reset delay.

The device monitors a wide sense input voltage range from 0.4V to 5.5V with an ultra high accuracy of 0.5% at room temperature. The output is asserted when the sense signal is below the comparator threshold. The MIC279X provides two outputs with inverting logic and multiple choice of drivers, open-drain and push-pull options.

The device also includes an enable signal in addition to manual reset and external programmable capacitive timeout delay between 1ms-10s. The input voltage range of 1.5V to 5.5V makes this part ideal for a wide variety of applications.


  • Telecom
  • Computers/servers
  • Medical equipment
  • Set top box and high-end A/V
  • Microprocessor-based systems
  • Handheld devices
  • SSD

  • 1μs ultra fast propagation delay
  • ±0.5% reset threshold at +25°C
  • ±1.0% reset threshold from -40°C to +125°C
  • Capacitor-programmable timeout delay and user adjustable input voltage thresholds with open-drain active low, push-pull active low, and push-pull active high options
  • Integrated manual reset and enable functions
  • Reference voltage of 0.4V

    Part NumberReset output active lowReset output active highEnablePackage
    MIC2790N-04VD6Open-drain--6-pin TSOT-23
    MIC2790L-04VD6Push-pull--6-pin TSOT-23
    MIC2790H-04VD6-Push-pull-6-pin TSOT-23
    MIC2790N-04VMTOpen-drain--6-pin 2 × 2mm TDFN
    MIC2791N-04VMTOpen-drain--6-pin 1.6 × 1.6mm TDFN
    MIC2791L-04VMTPush-pull--6-pin 1.6 × 1.6mm TDFN
    MIC2791H-04VMT-Push-pull-6-pin 1.6 × 1.6mm TDFN
    MIC2793LH-04VMTPush-pullPush-pullYes8-pin 2 × 2mm TDFN
    MIC2793NH-04VMTOpen-drainPush-pullYes8-pin 2 × 2mm TDFN