DC to DC Power Supplies (Converters)
High-Speed DC/DC Controller meets ADSL2+ power requirements.
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Press Release Summary:
Supplied in 3 x 3 mm QFN16 package, synchronous SP6138 operates above max 2.2 MHz ADSL2+ frequency to avoid data interference without additional filtering components. It generates min on-times under 30 ns, allowing for direct conversion at 2.5 MHz from 15 V to modem DSP core and I/O voltages. Designed to power ADSL2+ and full ADSL2 SRA (Seamless Rate Adaptation) modems, product features loss-less inductor DCR current sensing, PWM voltage mode architecture, and programmable soft-start.
Original Press Release:
Sipex SP6138 Industry's First 2.5MHz DC/DC Synchronous Controller to Meet ADSL2+ Power Requirements
High-Speed DC/DC Controller Maximizes ADSL2+ Performance by Eliminating Spectrum Interference
MILPITAS, Calif., Sept. 25 -- Sipex Corporation (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 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 www.sipex.com.
For additional information, contact:
Jules Farago, Technical Marketing Manager
Phone: 408-635-7457
Fax: 408-935-7678
Email: jfarago@sipex.com
