Power Supply Controllers, Monitors

Power supply controllers and monitors specialize in efficient power management and system monitoring, ensuring power supply stability and device protection. These components are widely used in industrial control systems, computer memory boards, and display devices to optimize performance and reliability.

Typical power supply controllers such as the MAX1530/MAX1531 support multiple output architectures and employ synchronous buck regulators to achieve up to 93% efficiency, making them suitable for LCD display power rail generation. They also feature a programmable startup sequence and soft-start function to prevent inrush current. Similarly, switching power supply controllers such as the PMC15E-1 provide AC-DC conversion for small load applications.

Monitor features include precise voltage detection and fault protection. The MB3771 monitors +5V and custom voltages, generating a reset signal to protect data when deviations exceed specified limits. These monitors feature low power consumption and user-configurable thresholds. More advanced solutions, such as the LTC2946, provide rail-to-rail system monitoring, measuring current, voltage, power, charge, and energy. They are suitable for -48V or 12V high-power systems and support an I²C interface and shunt regulator expansion. These devices typically integrate overcurrent shutdown and built-in compensation, simplifying design and improving response time.