MD7028 with SOT-89-3 is a Monitors & Reset Circuits device manufactured by Mingda, and comply with ROHS environmental standards. The device is made of a SOT-89-3 package, with an integrated source of power, high side current monitoring, and reset circuits. The device is designed for use in applications that require high precision current monitoring, such as battery chargers, ac-dc converters, DC-DC converters and other similar systems. The device features a temperature sensing circuit that provides accurate and reliable source of power over a wide operating temperature range, and a power supply diagnostic circuit for monitoring the condition of the power supply. The device also integrates a reset circuit that allows automatic protection of the load from overvoltage, overheating, and overcurrent conditions. The package also provides protection in the event of undervoltage or reverse polarity conditions.