New-Tech Europe Magazine | Oct 2017 | Digital Edition

77 / 84

new products
Unique DC/DC converter combines true
fixed frequency and ultra-fast transient
response with integrated compensation
TI’s stackable 16-V input, 40-A SWIFT™ DC/DC buck
converter features innovative control topology
Texas Instruments (TI) (NASDAQ: TXN) today
introduced the industry’s first 16-V input, 40-A
synchronous DC/DC buck converter with an internally
compensated advanced-current-mode (ACM) control
topology supporting frequency synchronization. TI’s
TPS543C20 SWIFT™ converter provides enhanced
efficiency by integrating its latest generation of low
resistance high- and low-side MOSFETs into a
thermally efficient small-footprint package. Designers
can stack two converters side by side to drive loads
up to 80 A for processors in space-constrained and
power-dense applications in various markets, including
wired and wireless communications, enterprise and
cloud computing, and data storage systems. For more
information, samples and an evaluation module, see
The unique internally compensated ACM control
topology with fast transient response maintains
stability over a wide range of input and output voltages.
What makes ACM different is that it is an emulated
peak-current-mode control topology that internally
generates a ramp with the ability to dynamically adjust
for stability over a wide range of operating switching
frequencies. This provides the best of both traditional
fixed frequency for low noise operation and constant
on-time (COT) control for fast transient without external
compensation. Read the blog post, “Lightning-fast
internally compensated ACM topology – what can it
do for you?” and the “Control-Mode Quick Reference
Guide” to understand the difference between TI’s
various control modes.
TPS543C20 key features and benefits
Provides greater than 90 percent efficiency at a 40-A
peak-load current.
Maintains 0.5 percent reference-voltage accuracy
over temperature and full differential remote-voltage
sensing to meet the voltage-accuracy requirements
of deep submicron processors.
Provides up to 80 A at point-of-load when stacking
two converters.
Offers very high power density and the PowerStack™
quad flat no-leads (QFN) package enables easy
heat sinking from the single ground pad.
TPS543C20 support and tools
Download the 1V, 20AHighly Integrated Synchronous
Buck Converter Reference Design and speed up
your design process with TI’s WEBENCH® online
design tools.
Order the 40-A TPS543C20EVM-799 or stacked
80-A TPS543C20EVM-869 evaluation modules.
For similar applications at 25A, TI offers theTPS543B20
in a pin-to-pin-compatible PowerStack QFN package.
For those applications requiring PMBus to support
telemetry, TI offers the stackable 35-A TPS546C23
SWIFT synchronous buck converter.
Mini-IO adopted as an International
Electrotechnical Commission standard
IEC 61076-3-122 provides miniaturized connector
standard for industrial applications in harsh
environments
TE Connectivity (TE), a world leader in connectivity and
sensors, announced the Mini-IO connector has been
adopted as an international standard (IEC 61076-3-
122) by the International Electrotechnical Commission
(IEC).
IEC 61076-3-122 provides the minimum requirements
for a miniaturized connector for industrial applications
and thus ensures safety through consistent performance
and interoperability. Connector requirements for
industrial applications are high as they typically run in
New-Tech Magazine Europe l 77