EL SEGUNDO, Calif. — International Rectifier, IR®(NYSE: IRF), a world leader in power management technology, today expanded its myPOWER online design services with the introduction of the POWIR+™ chipset reference designs and enhanced online design services, to simplify and accelerate power management circuit design.

The first series of POWIR+ chipsets brings together the IR3637SPbF and IR3637ASPbF application-tuned PWM control ICs and their companion HEXFET® MOSFETs for single-phase synchronous buck applications in computing and high-end consumer applications. The IRPP3637-06A, IRPP3637-12A and IRPP3637-18A reference designs, available in three power levels of six, 12 and 18 amps, accelerate the design process while eliminating unnecessary design iterations. In addition to the three reference designs available, users may modify any of the standard designs online at http://powirplus.irf.com to create custom circuits.

“IR’s POWIR+ reference designs use carefully selected power semiconductors, passive components and inductors targeted at specific power levels, and placed on an optimized PCB layout, to deliver predictable electrical and thermal performance. In contrast to typical evaluation boards, these reference designs mirror real-world circuits as closely as possible, providing meaningful results for complex issues such as board layout, thermal design, and the optimization of device interaction,” said Carl Smith, marketing manager for IR’s Computing and Communications Products.

Each of these fully-tested and characterized POWIR+ reference designs is available with a full suite of online simulation tools. Simulation capabilities include small- and large-signal analysis, switching waveforms, and performance analysis for all components.

The IRPP3637-06A is optimized for low-current applications requiring reduced size and component count, and is achieved by using IR’s latest IRF8910PbF dual SO-8 MOSFET. The IRPP3637-12A is optimized for medium-current applications, using IR’s latest IRF7823PbF and IRF7832ZPbF independent SO-8 MOSFETs to improve both electrical and thermal efficiency. The IRPP3637-18A is optimized for medium-to-high-current applications that require excellent thermal performance while maintaining an emphasis on cost-effectiveness, and is achieved by using IR’s latest IRLR8713PbF and IRLR7843PbF D-Pak MOSFETs.

When customizing a standard reference design, a user adjusts system-level inputs to effect trade-offs in key performance criteria such as electrical efficiency, power loss, junction temperature, size and bill-of-materials costs. Once complete, the circuit can be immediately simulated online and then ordered as a fully-tested and characterized design. The designs can be customized to operate within an input voltage range of 3.0V to 13.2V, an output voltage range of 0.8V to 5.0V, and switching frequencies of 400 kHz or 600 kHz.

Part Number	Configuration	Input Voltage	Output Voltage	Output Current	Switching Frequency	Power Semi BOM	Electrical Efficiency	Size
IRPP3637-06A	Standard	5V	1.25V	6A	600kHz	IR3637ASPbF (SO-8), IRF8910PbF (Dual SO-8)	80% Full load 85% Peak	~1.0 in2
	Custom	3.0V to 13.2V	0.8V to 5.0V	Up to 6A	400kHz or 600 kHz	Various
IRPP3637-12A	Standard	12V	1.8V	12A	400kHz	IR3637PbF (SO-8), IRF7823PbF (SO-8), IRF7832ZPbF (SO-8) Option to populate S-Can DirectFET® MOSFETs	84.2% Full load 85.1% Peak	~1.5 in2
	Custom	3.0V to 13.2V	0.8V to 5.0V	Up to 12A	400kHz or 600 kHz	Various
IRPP3637-18A	Standard	12V	3.3V	18A	400kHz	IR3637SPbF (SO-8) IRLR8713PbF (D-Pak) IRLR7843PbF (D-Pak)	87% Full load 88.8% Peak	~2.0 in2
	Custom	3.0V to 13.2V	0.8V to 5.0V	Up to 18A	400kHz or 600 kHz	Various

The online simulation and customization tools are available at http://powirplus.irf.com.

Availability and Pricing

The first series of standard POWIR+ chipset reference designs is available immediately. Customized reference designs are available 1-2 weeks ARO, ordered through the POWIR+ chipset online design tool. Pricing for each standard IRPP3637-xxA reference design is US $150.00 in single-unit quantities. Pricing for each customized IRPP3637-xxA reference design is US$250.00 in single-unit quantities. Prices are subject to change without notice.

The devices and materials used in the IRPP3637-xxA series of reference designs are Restriction of Hazardous Substances Directive (RoHS) compliant.