International Rectifier Introduced 40A IR3553

Published:2011/12/1 21:30:00 Author:Amy From:SeekIC

International Rectifier introduced 40A IR3553 to expand its PowIRstage family of integrated devices, which optimized for next-generation servers, consumer and communication systems.

With advanced silicon, packaging and control techniques adopted, the IR3553 integrates a synchronous buck gate driver, benchmark figure-of-merit control, and synchronous MOSFETs and Schottky diode into a small, high density, low profile 6mm x 4mm x 0.9mm PQFN package to deliver a high current density and high efficiency power stage solution. It helps to simplify the design and implementation of high current, high performance multiphase buck regulators.

Before 40A IR3553, 60A IR3550 PowIRstage is proven to deliver very high efficiency with the smallest footprint in customers’ designs. The new 40A rated IR3553 product extends the benefits of existing PowIRstage products into more cost-sensitive applications like entry level servers and high end desktops. Using a single layout, the best price/performance solution now are available without the risk of a board re-design due to changing requirements, with the option of several plug and play PowIRstage products.

IR PowIRstage products offer an integrated current sense amplifier. It has superior current sense accuracy and noise immunity as in comparison to best-in-class controller based inductor DCR sense methods. The IR3553 and IR3550 are fully PWM compatible with IR’s CHiL digital power control products, and most industry standard PWM controllers on the market.

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