EL SEGUNDO, Calif. - April 2005 -- International Rectifier, IR®(NYSE: IRF), a world leader in power management technology, today introduced the iPOWIR™ iP1203, a fully-optimized, full-function 15A single output synchronous buck converter device that achieves over 90% efficiency at full load. The iP1203 is a flexible solution that addresses requirements from 5.5Vin to 13.2Vin and 0.8Vout to 8Vout, maintaining a full load capability of 15A.

The new power building block is designed to simplify DC-DC point-of-load (POL) converters for network processor units (NPUs) and ASIC power rails within networking and telecommunication systems. The iP1203 is ideal for use in two-stage distributed power architectures being fed from either a regulated isolated brick or an unregulated DC bus converter.

"Offering superior power density, the iP1203 building block integrates a full-function PWM control IC, trench MOSFETs and passive components enabling excellent thermal performance at raised ambient temperature without de-rating," said Carl Smith, Marketing Manager for Networking and Telecommunication Products at International Rectifier.

"The device incorporates the most critical sync buck power functions so that designers do not have to worry about component selection or board layout," Smith added.

The iP1203 addresses important networking and telecommunications power system requirements such as hiccup over-current, over-temperature and over-voltage protection, external synchronization, power good and soft start. The building block is housed in a land grid array (LGA) package measuring 9mm x 9mm x 2.3mm. The iP1203 uses thermally-enhanced mold compound, enabling dual-sided cooling capability and very low junction-to-case and junction-to-PCB thermal resistance for maximum current handling.

The iPOWIR™ Family

iPOWIR™ products simplify power supply design, enabling faster time to market and reduces board space by up to 56% and significantly minimizes circuit parasitics when compared to discrete solutions.

Part Number	Package	VIN	VOUT	IOUT	Operating Frequency
iP1203	9mm x 9mm x 2.6mm LGA	5.5V - 13.2V	0.8V - 8.0V	15A max	200kHz - 400kHz

Design Assistance and Application Notes

IRDCiP1203-A: 400kHz, 15A synchronous buck converter reference design using iP1203

MyPower.irf.com: Web-enabled Spice circuit simulation for iP1203

AN-1028: Recommended Design, Integration and Rework Guidelines for IR's iPOWIR Technology BGA and LGA Packages

AN-1029: Optimizing PCB Layout for an iPOWIR Technology Design

AN-1030: Applying iPOWIR Products in Your Thermal Environment

AN-1047: Graphical Solution to Two-Branch Heatsinking Safe Operating Area

Availability and Pricing

The new iP1203 in the LGA package is available immediately. The iP1203TR is supplied in 1,000 pieces per tape and reel package. Pricing is US $5.75 each in 1,000-unit quantities. Prices are subject to change.