Micrel Inc. has introduced a new member to its high power density family of products, a fully-integrated 4A synchronous buck regulator, the MIC22400 for powering systems from 3.3V and 5V supply rails. With operating frequency programmable from 800KHz to 4 MHz, the IC features built-in sequencing, tracking and ramp control enabling all power-up sequencing and tracking protocols. Targeted at the communications, computing peripherals, and high-end consumer markets, the solution is ideal for servers/routers, HD DVD recorders, wireless base stations, FPGAs, DSPs, and low voltage ASICs, as well as other high power density applications. The MIC22400 is currently available in volume quantities with pricing starting at $2.54 for 1K quantities.
“Ease-of-use, small size, high efficiency and high integration are key drivers for today’s demanding power designs,” noted Andrew Cowell, Micrel’s vice president of marketing for analog products. “The MIC22400 delivers 4A at high efficiency while setting new standards in terms of small footprint and increased functionality.”
The MIC22400 features fully integrated 60mOhm P-FET and 35mOhm N-FET switches that deliver a 4A output current with an input voltage range of 2.6-5.5V. The device has an adjustable output voltage down to 0.7V and provides efficiencies of up to 95 percent. A proprietary, patentpending internal compensation scheme makes the devices extremely easy to use. The MIC22400 requires very few external components and operates at a high fixed switching frequency, which in turn, reduces the size of passive components. The built-in sequencing/tracking feature enables reliable power up/down in multi-rail ASIC/FPGA applications. The device also offers an ultra-fast transient response, allowing the use of small output capacitors, and thermal shutdown, current limit protection and a junction operating range from -40-deg C to +125-deg C. The IC is available in a 20-pin 4mm x 3mm MLF? with a thermally-enhanced Epad TSSOP available by the end of Q1, 2008 .
About Micrel, Inc.
Micrel Inc., is a leading global manufacturer of IC solutions for the worldwide analog, Ethernet and high bandwidth markets. The Company’s products include advanced mixed-signal, analog and power semiconductors; high performance communication, clock management, Ethernet switch and physical layer transceiver ICs.Company customers include leading manufacturers of enterprise, consumer, industrial, mobile, telecommunications, automotive, and computer products. Corporation headquarters and state-of-the-art wafer fabrication facilities are located in San Jose, CA, with regional sales and support offices and advanced technology design centers situated throughout the Americas, Europe and Asia. In addition, the Company maintains an extensive network of distributors and reps worldwide. Web: http://www.micrel.com.
Note: The above text is the public part of the press release obtained from the manufacturer (with minor modifications). EETimes Europe cannot be held responsible for the claims and statements made by the manufacturer. The text is intended as a supplement to the new product presentations in EETimes Europe magazine.