Two-Phase Controller Powers Leading-Edge Microprocessors

July 1, 2002
The new FAN5091 is a two-phase, single-chip, synchronous buck controller with integrated high-current super drivers. Operating from a single 5V supply, the device features Programmable Active Droop and achieves 100 ns transient response when operating

The new FAN5091 is a two-phase, single-chip, synchronous buck controller with integrated high-current super drivers. Operating from a single 5V supply, the device features Programmable Active Droop and achieves 100 ns transient response when operating with minimal output capacitance. These and other features of the FAN5091 are said to greatly simplify power supply designs requiring 69A for Willamette VRM9.0 Pentium IV CPUs or 50A for Ath-lon K7 CPUs. The company also claims gains in conversion efficiency of over 10% when compared to competing 3-phase solutions. A 5-bit VID DAC allows precision dynamic adjustment of the output voltage between 1.10V to 1.85V, while an E* mode further improves efficiency under light load conditions, allowing designers to meet the Federal Energy-Star power conservation guidelines. The FAN0591 is available in a 24-pin TSSOP package and is priced at $3.75 each/1,000. FAIRCHILD SEMICONDUCTOR INTERNATIONAL, San Jose, CA. (888) 522-5372.

Company: FAIRCHILD SEMICONDUCTOR INTERNATIONAL

Product URL: Click here for more information

Sponsored Recommendations

Highly Integrated 20A Digital Power Module for High Current Applications

March 20, 2024
Renesas latest power module delivers the highest efficiency (up to 94% peak) and fast time-to-market solution in an extremely small footprint. The RRM12120 is ideal for space...

Empowering Innovation: Your Power Partner for Tomorrow's Challenges

March 20, 2024
Discover how innovation, quality, and reliability are embedded into every aspect of Renesas' power products.

Article: Meeting the challenges of power conversion in e-bikes

March 18, 2024
Managing electrical noise in a compact and lightweight vehicle is a perpetual obstacle

Power modules provide high-efficiency conversion between 400V and 800V systems for electric vehicles

March 18, 2024
Porsche, Hyundai and GMC all are converting 400 – 800V today in very different ways. Learn more about how power modules stack up to these discrete designs.

Comments

To join the conversation, and become an exclusive member of Electronic Design, create an account today!