TI’s 20-A and 30-A SWIFT™ DC/DC buck converters support adaptive voltage scaling for improved efficiency
Bangalore, August 3, 2015: Texas Instruments 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, visit www.ti.com/PMBusSWIFT-pr.
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. Read a blog post on “Selecting the correct PMBus POL solution for your application.”
For applications such as enterprise Ethernet switches, TI also offers the UCD90240 24-rail PMBus power sequencer and power manager. Together, the TPS544C25 and UCD90240 provide a complete PMBus point-of-load (POL) and sequencing solution. Download the Complete PMBus Power System for Enterprise Ethernet Switches TI Designs reference design.
TPS544B25 and TPS544C25 key features and benefits
· Integrated power MOSFETs support 20-A and 30-A of continuous output current.
· On-chip PMBus interface and non-volatile memory simplify power-supply design and enable customization. Read a blog post on “PMBus – what is the value anyway?”
· Voltage-control mode with input feed-forward improves noise margin and responds instantly to input voltage changes. Watch a video on the benefits of adaptive voltage scaling.
· Other features include internal soft start, input under-voltage protection, thermal shutdown and a reset function.
About SWIFT products from Texas Instruments
Part of TI’s portfolio of industry-leading DC/DC converters, the SWIFT product line includes more than 130 converters with integrated MOSFETs supporting input voltage ranges from 3 V to 28 V. SWIFT products provide high density and performance; power DSPs, FPGAs and other processors; and are fully functional in TI’s WEBENCH Power Design tools. Get more information about TI’sSWIFT DC/DC converters.
