The NCS199A2RSQT2G is a current shunt monitor and regulator manufactured by ON Semiconductor. It is a low-voltage, precision, single-channel, integrated current shunt monitor that operates over a wide input voltage range of 4.5 V to 26 V. The device features an override function, which allows it to continue to measure currents above the programmed current limit, and a low quiescent current of 200 µA at 25°C. The device also integrates power monitoring, data logging, and temperature control in a single package. Additionally, it features open-drain output, thermal shutdown, programmable current limit, and long-term accuracy with a ±1% initial accuracy over temperature range.