El Segundo, Calif.—International Rectifier's iP1203, the latest addition to the company's iPOWIR family, is a synchronous buck converter building block that achieves over 90 percent efficiency at full load. The iP1203, with relatively few external components, can deliver 15 amps at 0.8 to 8 volts from a 5.5 to 13.2-volt input to simplify DC/DC point-of-load (POL) converters that power network processor units and ASICs. The iP1203 is generally suited to two-stage distributed power architectures that are fed from either a regulated (isolated) brick or an unregulated DC bus converter.
"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 derating," said Carl Smith, marketing manager for Networking and Telecommunication Products. "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 critical networking and telecommunications power system requirements such as hiccup over-current, over-temperature and over-voltage protection, external synchronization, and soft-start. The building block, housed in a land grid array (LGA) package measuring 9-by-9mm-by-2.3 mm, 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 device's data sheet is available at www.irf.com/product-info/datasheets/data/ip1203.pdf. Reference design information for the iP1203, found on the company web site, include the IRDCiP1203-A (400kHz, 15A synchronous buck converter reference design using iP1203), and MyPower.irf.com: Web-enabled Spice circuit simulation for iP1203. Application notes include 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; and AN-1047: Graphical Solution to Two-Branch Heatsinking Safe Operating Area.
The iP1203 is priced at $5.75 each in 1k pieces (tape and reel package has 1,000 pieces). Prices are subject to change.
International Rectifier, 1-310-252-7105,