ON Semiconductor Releases New MC33565 and MC33567 Analog ICs
ON Semiconductor LLC (Phoenix, AZ) has released two new analog ICs for peripheral card and motherboard applications. The MC33565 is a smart voltage regulator that enables switching between the main 5V supply and the 3.3V auxiliary supply. The MC33567 is a dual linear controller that simplifies power management on computer motherboards.
The MC33565 complies with the Advanced Configuration and Power Interface guidelines and provides a regulated output voltage of 3.3V via an internal LDO 5.0V-to-3.3V voltage regulator or an internal P-channel MOSFET, housed in a small SO-8 package. The MC33567 is a dual power-supply controller that provides regulation of high-current supply planes as well as the necessary drive, sense and control signals to interface two separate N-channel MOSFETs as individual series pass elements regulating two different supply planes.
The MC33567 is available in two versions. The MC33567-1 controls two separate series pass transistors to provide regulation for separate 1.5V and 1.8V supply planes. The MC33567-2 controls two separate series pass transistors to provide regulation for separate 2.5V supply planes.
