PMBbus konverter med frekvenssynkronisering
Texas Instruments lancerer high-current PMBus konverter, der takket være frekvenssynkronisering reducerer EMI (in english).
Texas Instruments (TI) has introduced the industry’s first 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.
Used in conjunction with TI’s award-winning WEBENCH online design tools, the converters simplify power conversion and speed the power supply design process. For more information, samples and an evaluation module.
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.
