Exar Launches 1.5 MHz, 600mA Step-Down Inductive Converter

Exar Corp. introduced a new synchronous inductive step-down converter – the SP6669. It is capable of delivering up to 600mA, and achieving output voltages as low as 0.6V. The device is well suited for portable devices with a USB interface including digital cameras, portable media players, and wireless networking amongst others.

"The SP6669 represents an evolutionary step for Exar by extending proven converter technology to new USB specific-based designs, " said Eric Pittana, Director of Marketing, Power Product Line. "Based on a highly integrated design, the device is offered in a small form factor that can eliminate several discrete components giving system architects maxim flexibility for developing solutions for space constrained environments."

Operating at a fixed internal switching frequency of 1.5MHz, the SP6669 can reach 95% efficiency while providing up to 600mA of output current capability. Its output voltage can be set as low as 0.6 or 1.5V and 1.8V for the fixed output versions, which can be achieved from any input voltages from 2.5 to 5.5V. This synchronous converter offers tight 0.4%/V and 0.5% of line and load regulations.

Samples of the SP6669 are available now in a -40 to +85°C temperature range. In 1,000 piece quantities in a SOT-23-5 package, the SP6669 is $0.49.