Generating a number of dc supply voltages to power computer motherboard core logic with a single switching regulator IC, the CS-51313 synchronous CPU buck controller uses firm's V2 control method that's said to provide the industry's fastest transient response time while on-chip control and protection features simplify design. Housed in a 16-pin DIP, the device sends its own internal 1% bandgap reference voltage to an external pin. The voltage can be amplified with a few external components and power transistors to provide various supply voltages to an Intel Pentium II and its support logic on the same motherboard. The device also outputs a pair of signals designed to drive the gates of two external n-channel power MOSFETs to provide power to the µP core.
Company: CHERRY SEMICONDUCTOR CORP.
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