Exponential growth in the requirements for higher current at lower operating voltages has created a rough road for designers of DC-DC power management systems. International Rectifier has focused the power semiconductor industry's largest R&D effort to implement a roadmap for high performance and cost-effective DC-DC power management. IR's extensive discrete and IC portfolio makes IR the only power semiconductor company with a product for every power management socket on today's computing PCB. IR DC-DC solutions extend to telecom, datacom, networking and peripherals requirements.
Desktop/Server Network and Communications International Rectifier re-defined the underlying distributed power architecture for 48V-input, board-mounted power (BMP) converters used in telecom and networking systems with the DC Bus Converter chip set architecture. The architecture eliminated the regulated output at the intermediate stage and its expensive feedback circuitry, slashing component count and achieving over 96% efficiency. IR's innovative iPOWIR™ devices created a whole new way to design on-board, non-isolated DC-DC converters. iPOWIR technology is a breakthrough in power conversion, combining all layout-critical power semiconductors and passive components of the circuit to form complete functional building blocks, reducing converter size and design time. Portables IR power management products for notebook computers and portable electronics such as mobile phones and personal data assistants (PDAs) are designed to maximize power density and deliver the highest efficiency for space-constrained applications. As notebook computer processor power requirements continue to increase in complexity, IR power devices and technology such as the DirectFET® Power MOSFET, the HEXFET® Power MOSFET, the FlipKY™ Schottky diode, the FlipFET™ MOSFET and the FETKY™ (MOSFET co-packaged with a Schottky diode) enable designers to achieve form factors and efficiency goals. POWIR+ Chipset Reference Designs
Optimized Single-Phase Synchronous Buck Reference Designs are targeted at up to 6Amps, 12Amps and 18Amps, with On-Line Hardware Customization & Simulation Capability.
International Rectifier’s new POWIR+ Chipsets, based on IR’s IC and MOSFET products, are supported with highly dependable power management reference designs and enhanced on-line design services, enabling faster time to market and reducing risks of having to complete extra unnecessary design iterations. The first set of three POWIR+ Chipsets are based on IR’s IR3637S and IR3637AS controllers, targeted at single-phase synchronous buck converter applications in computing and high end consumer applications.
ORing Controller IC
Buck Controller Multi-Phase Output
Buck Controller Single Output
Buck Controller Multiple Output
Buck Regulator
Integrated Power Stage
DirectFET MOSFETs
iPOWIR Technology
XPhase Multiphase Architecture
DC Bus Chipset
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