ZMD AG (ZMDI) has released the ZSPM1502 single-phase, true-digital power solution for non-isolated, high-current point-of-load (POL) supplies in field programmable gate array (FPGA) applications. The ZSPM1502 pulse-width modulation controller has been optimized to provide the ultra-fast transient load response typically needed for many higher performance FPGAs in telecommunication equipment operating with a 1.0V supply. The ZSPM1502 is capable of supporting loads up to 40A at the popular bus voltage of 1V (output voltage of the power stage). ZMDI also provides bills-of-materials and circuit board layouts to improve customer design cycles, reduce external component cost and minimize application footprint size.
ZMDI’s State-Law Control™ (SLC) technology enables the ZSPM15xx family of digital pwm controllers to respond quickly to large step changes in current for higher performance FPGAs. The SLC feature monitors the output voltage with two parallel compensation feedback loops: one circuit for steady-state operations and a different circuit for transient operations. The ZSPM1502 switches quickly and reliably between the different compensation modes to provide excellent transient performance.
“This product is optimized for the next generation FPGA solutions, which require an ultra-compact footprint and fast transient load response to meet performance specifications. This enables our customers to get the best performance out of the FPGA with much smaller capacitors at the output, resulting in a lower total solution cost,” said Hensen Wong, Product Marketing Manager of the ZMDI Power Management Division. “Because the ZSPM1502 is designed for our ZSPM90xx DrMOS power stage products, the chipset can provide customers with a fast time-to-market, best-in-class transient response and lower BOM cost.”
These controllers are delivered in a high-density in a 4 x 4 mm QFN24 package footprint. They include selectable over-current limit protection, output voltage slew rate and control loop compensation. The ZSPM1502 features an operating temperature of -40 to +125 degrees C, operation from a single 5V supply and the pre-configured ZSPM15xx family is available with additional output voltage options: 0.85V, 1.20V, 1.50V, 1.80V and 2.00V.
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Applications are expected to include: telecommunications base stations, enterprise routers/switches, gateways, and other telecommunication equipment. The ZSPM1502 product family is in full production. Parts and evaluation kits are available from ZMDI. For 1,000 pieces, the products are priced at EUR 0.87 or USD $1.22 per unit.
source: http://www.powerpulse.net/story.php?storyID=31349
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