Texas Instruments (TI) today introduced 20-A and 30-A synchronous dc-dc buck converters with frequency synchronization for low-noise and reduced EMI/EMC and a PMBus interface for adaptive voltage scaling (AVS). TI’s SWIFT™ 20-A TPS544B25 and 30-A TPS544C25 converters integrate MOSFETs and feature small PowerStack™ QFN packages to drive ASICs in space-constrained and power-dense applications in various markets, including wired and wireless communications, enterprise and cloud computing, and data storage systems.
Recommended: MIT Spinout enters GaN Power Race
The highly-integrated converters feature 0.5 percent reference-voltage accuracy and full differential remote-voltage sensing to meet the voltage requirements of deep sub-micron processors. Frequency synchronization to an external clock eliminates beat noise and reduces EMI. Additionally, the TPS544B25 and TPS544C25 offer pin-strapping that enables the devices to start up without PMBus commands to an output voltage set by a single resistor. Programmability, real-time monitoring of the output voltage, current and external temperature, and fault reporting via PMBus simplify power-supply design, increase reliability, and reduce component count and system cost.
Related: One-Chip PMIC for Energy Harvesting Systems
SWIFT buck converters are available in volume now from TI and its authorized distributors. Packaged in a 40-pin, 5-mm by 7-mm by 1-mm PowerStack QFN package, the 20-A TPS544B25 is priced at US$4.08 and the 30-A TPS544C25 is priced at US$4.49 in 1,000-unit quantities.
source: http://www.powerpulse.net/story.php?storyID=32746
Comments are closed.
