power stage, iP2005A, International Rectifier

Device delivers low power loss with low EMI in 40 percent smaller package

News Release from: International Rectifier
11/03/2008

International Rectifier has introduced the iP2005A, a fully optimized power stage solution for high current synchronous buck multi-phase converters used in gaming, computing and communications applications. It is 40 percent smaller in size compared to the previous generation device while its efficient operation up to 1.5MHz allows designers to further reduce board space by minimizing the value of output capacitors and inductors.

The iP2005A is optimized for very low EMI, eliminating the need for external snubber circuits in EMI-sensitive designs such as consumer game consoles. By eliminating external snubbers, the iP2005A reduces per phase power loss by up to 2.3W compared to the previous generation device that required an external resistor and capacitor snubber with values of 2.2 Ohms and 10nF respectively.

Available in a 7.7mm x 7.7mm x 1.7mm LGA package, each iP2005A building block is capable of delivering up to 40 amps at 0.8V to 5.5V output. By using these building blocks in a multi-phase system, currents up to 160 amps can be achieved with an industry standard four-phase controller. In addition to an external PWM controller, only input and output capacitors and an output inductor at each phase are required.