Date: 21st Jun 2011
Single/dual-channel power distribution
switches supporting USB 3.0 specs
Exar Corporation has unveiled the XRP252x series of two
single and two dual-channel power distribution switches
supporting the latest USB 3.0 and all earlier USB specifications.
The XRP2525 and XRP2526 devices are optimized for VBUS power
distribution applications with a guaranteed continuous 900mA
per channel current capability, controlled rise and fall
time and enhanced port protection.
The XRP2527 and XRP2528, with continuous current ratings
of 1A per channel accept input voltages as low as 1.8V and
are designed to suit for generic power distribution applications.
The XRP2527 and XRP2528 also provide enhanced power port
protection by an externally programmable current limit providing
better than 8% accuracy at full current range.
"With USB 3.0 level of performance becoming the de
facto standard in USB peripherals, these new devices open
a new and growing market to Exar," said Eric Pittana,
director of marketing, Power Product Line. "This is
not only driven by the need for higher data transfer rate
but also by the increased output power required on these
USB ports. The XRP252x series enables end equipment to handle
the higher load switching while providing enhanced protection
for hubs and peripherals."
Key Product Features
With a capability of up to 1A continuous current per channel,
the XRP252x series of power distribution switches features
independent port enables, independent 10ms filtered error
flag signals, controlled start-up time in hot-plug events,
short circuit protection and a precision current limit in
the XRP2527 and XRP2528. Additionally, the power protection
scheme includes under voltage lockout, reverse output voltage
blocking and thermal shutdown. These devices are offered
in a single or dual channel configuration and accept a wide
input voltage range of 1.75V to 5.5V suitable to operate
from industry standard 1.8V, 3.3V and 5V power rails.
Prices, Packages, Availability: The XRP2525 and XRP2526
are available now in volume quantities and offered in a
RoHS compliant, "green" halogen free 8-pin SOIC
package. Pricing starts respectively at $0.33 and $0.39
for 1K units.
The XRP2527 and XRP2528 are available now in volume quantities
and offered in a RoHS compliant, "green" halogen
free 8-pin DFN and 10-pin thin DFN packages with pricing
starting respectively at $0.39 and $0.54 for 1K units.
For more information visit: http://www.exar.com/
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