New Industry Products

ON Semiconductor Debuts CS542x Controllers

November 25, 2001 by Jeff Shepard

ON Semiconductor (Phoenix, AZ) announced the new CS542x dual synchronous-buck controller family designed for computing and networking applications, including graphics cards, DDR memory, multiple-output power supplies and computer motherboards.

The CS542x buck controllers are dual power supply controllers that utilize the V2 control method, enabling fast transient response and overall regulation. The fixed-frequency architecture ensures a 180-degree phase differential between channels, reducing the input capacitance required. The family is suitable for applications where a 12V supply is available and two lower voltage outputs are needed.

"The CS542x packs a lot of features into a small package, making it ideal for creating power supplies in computing applications where size is limited, but stringent performance requirements still need to be met," said Dale Carlton, director of the Computer Internet Business Unit at ON Semiconductor. "With the introduction of the CS542x family, ON Semiconductor demonstrates its commitment to deliver application-driven power-management products ahead of the market."

ON Semiconductor offers two versions of the family: the CS5421 features remote sense capability while the CS5422 has current-limit protection. Both are available in 16-pin versions and the CS5422 is also available in a 24-pin fused-lead power package for high-current applications.

Pricing for the CS5421GDR16 and CS5422GD16 is $1.59 per unit in 10,000-unit quantities, and $1.72 per unit in 10,000-unit quantities for the CS5422WFR24.