High-Speed DC/DC Controller Maximizes ADSL2+ Performance by Eliminating
Spectrum Interference
MILPITAS, Calif., Sept. 25 /PRNewswire-FirstCall/ -- Sipex Corporation
(OTC Bulletin Board: SIPX.PK) today announced the SP6138, a 2.5MHz
synchronous DC/DC controller designed to power ADSL2+ and full ADSL2 "SRA"
(Seamless Rate Adaptation) modems. By operating above the maximum 2.2MHz
ADSL2+ frequency, the SP6138 avoids data interference without the need for
additional filtering components. Sipex' designers developed industry
leading technology to generate minimum on-times of less than 30ns allowing
for direct conversion at 2.5MHz from 15V to modem DSP core and I/O
voltages. Single supply rail operation from 4.5V to 5.5V or 5V to 24V
simplifies design and eliminates the need for additional intermediate
rails.
The SP6138 controller 2.5MHz operating frequency combined with
loss-less inductor DCR current sensing maximizes response to load
transients, minimizes solution size, and reduces overall Bill of Material
costs. In addition to ADSL2+, applications such as Automotive GPS
Navigation, Satellite Set Top Boxes, and aftermarket Automotive Electronics
may find the high operating frequency a good way to avoid AM radio
interference while powering the processors used in all of these systems.
The SP6138 offers the designer a unique combination of features:
-- 2.5MHz operating frequency PWM voltage mode architecture
-- +/-1% accurate 0.8V reference
-- Up to 3A Output load capability
-- Loss less inductor DCR current sensing
-- Internal VCC UVLO insures minimum input voltage for proper operation
-- PWRGD output with adjustable delay eliminates need for additional
supervisory circuits
-- Hiccup-mode with 30ms restart delay upon detection of power,
thermal, or over-current fault conditions
-- Programmable Soft-Start feature
-- Programmable VIN UVLO
"The SP6138 demonstrates Sipex' ability to provide leading edge
technology in the Power Management market. This single rail DC/DC
controller expands Sipex' recently released SP6133 and SP6136," said Jules
Farago, Sr. Technical Marketing Manager. "Sipex is committed to providing
designers with unique DC/DC converter solutions like the SP6138 that add
value to systems requiring high switching frequencies and single stage
power conversions, otherwise not achievable with other industry offerings."
Pricing and Availability
The SP6138 is available in small 3x3 QFN16 packaging, in an extended
ambient temperature range from -40 degrees C to +85 degrees C. Pricing is
$1.95 in 1K units. Datasheets and additional support documentation can be
found at http://www.sipex.com.
About Sipex Corporation
Sipex Corporation is an analog semiconductor company that addresses
standard linear and application specific standard products (ASSP) for
customer systems that are primarily targeted at the consumer, networking
and industrial markets. The products are categorized into three synergistic
areas of power management, interface and optical storage. Sipex is a global
company with operations in Asia, Europe and North America. It is the
mission of the company to create innovative analog products that enable
customers to produce differentiated products. For more information about
Sipex, visit http://www.sipex.com.
For additional information, contact:
Jules Farago, Technical Marketing Manager
Phone: 408-635-7457
Fax: 408-935-7678
Email: jfarago@sipex.com
SOURCE Sipex Corporation
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Related links:
http://www.sipex.com
http://www.prnewswire.com/comp/111683.html/
CONTACT:
Jules Farago, Technical Marketing Manager of
Sipex Corporation, +1-408-635-7457, or jfarago@sipex.com
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