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Regulators up power efficiency in DDR apps by 93%

Posted: 24 Jul 2007 ?? ?Print Version ?Bookmark and Share

Keywords:power regulator ICs? power management? MOSFETs?

Freescale Semiconductor has introduced a series of single- and dual-power regulator ICs that provide efficient power management for DDR applications. Freescale's MC34712/3/6/7 regulator ICs efficiently power data-dense DDR1/2/3 memory systems and handle DC/DC conversion in power conversion applications.

"Computing platform manufacturers are designing next-generation products that require denser memory systems and extended battery life," said Arman Naghavi, vice president and general manager of Freescale's analog, mixed-signal and power division. "Freescale's single and dual regulators are designed with advanced power management technology that combines a high level of integration and efficiency to address the power demands of next-generation DDR memory systems."

Operating as synchronous buck switching converters, Freescale's MC34712/3/6/7 series devices are designed to increase power management efficiency by up to 93 percent in most DDR applications, and with less power dissipation for DC/DC conversion. The MC34712/3/6/7 devices provide programmable high-current switching frequency of up to 1MHz for smaller inductors and capacitors.

Manufactured with Freescale's SMARTMOS technology, the MC34712/3/6/7 series features an integrated controller and MOSFETs. This high level of integration minimizes the need for external components and helps reduce the total component count for space-constrained applications.

All the devices feature an input operating voltage of 3-6V, 1MHz synchronous single and dual switching regulators and an output voltage of 2 percent accuracy. The devicews also offer PGOOD, STDBY and shutdown inputs (active low) and soft start (all outputs). Meanwhile, the MC34712 and MC34716 for DDR1/2/3 product features support VDDQ and VTT for DDR-I, -II, -III or mobile DDR and has an adjustable output 0.7-1.35V.

MC34712 single-output DDR and MC34713 single-output DC/DC versions sell at $1 and the MC34716 dual-output DDR and MC34717 dual-output DC/DC versions cost $1.37 each, in 10,000-piece quantities.

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