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CMD unveils linear regulator for DDR memories

Posted: 15 Dec 2006 ?? ?Print Version ?Bookmark and Share

Keywords:DDR memory? DDR? CMD? linear regulators? regulator?

CM3212 linear regulator from CMD

California Micro Devices (CMD) has announced the CM3212, a dual-output linear regulator for powering DDR memory in digital consumer and PC peripheral applications such as digital TVs, STBs, DVD players and game consoles.

CMD said this new device promises the industry's highest functional integration level, lowest cost and smallest design footprint compared to competing solutions for DDR memory. The CM3212 integrates the VDDQ and VTT power supplies, the VREF voltage supply and a VTT enable function for implementing "Suspend to Ram" sleep mode. The integration of these features provides space savings of up to 78 percent and a 70 percent cost savings.

The CM3212 provides a fully integrated and complete power solution for a DDR memory system in digital consumer electronics and PC peripheral applications. It features two independent linear regulators for VDDQ and VTT, along with an integrated VREF supply. With integrated power MOSFETs, the CM3212 can source up to 2A of VDDQ current, and source or sink up to 2A of VTT current. The typical dropout voltage for VDDQ is 500mV at 2A load current.

The CM3212 also features an enable VTT pin for sleep or "Suspend to RAM" mode, which allows for the DDR memory to be powered while suspending VTT, reducing overall system power when the system is in standby.

The CM3212 provides fast response to transient load changes. It integrates overcurrent protection with short circuit and thermal shutdown for VDDQ and VTT. The device is available in ROHS-compliant Pb-free TDFN-8 and SOIC packages.

The CM3212 is sampling today with volume production scheduled for Q1 2007. The CM3212-02SM (SOIC) is priced at 54 cents and the CM3212-02DE (TDFN) is priced at 59 cents each in 1,000-unit quantities.

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