New Industry Products

IR Announces New IRU3038 Power Management IC

February 25, 2002 by Jeff Shepard

International Rectifier Corp. (IR, El Segundo, CA) announced the IRU3038, a synchronous PWM controller integrated circuit (IC) for the termination voltage requirements of double data rate (DDR) memory arrays. The new IRU3038 simplifies design and cuts component count, enabling cost-effective power management for DDR memory for currents in the 3A to 10A range. The IRU3038 is offered in two packages, a narrow-body SOIC-14 and a small-size TSSOP-14 package.

The IRU3038 is capable of operating with a single 5V or 12V supply voltage. The IRU3038 can be programmed to operate between 200kHz and 400kHz using an external resistor, simplifying the optimization of the design and layout to obtain the highest efficiency. The use of a voltage-mode control loop enables a simple, more cost-effective design. The new device features under-voltage lockout for both VCC and VC supplies, an externally programmable soft-start function as well as an output under-voltage detection that latches off the device when an output short is detected.

The IRU3038 features a 1.25V one-percent reference that allows it to be used as a general purpose controller for on-board dc/dc conversion in applications such as graphics cards, desktop motherboards, set top boxes, communications equipment and hard disk drives.

Samples and production quantities are now available. Pricing is $0.82 each for 10,000-piece quantities in a SOIC-14 package.