Monday, February 11, 2008

Micrel announces new Dual-Channel Hot-Plug Power Controllers

San Jose, California, (ANTARA News/PRNewswire-AsiaNet) - Micrel Inc., (Nasdaq: MCRL), an industry leader in analog, high bandwidth communications and Ethernet IC solutions, today launched the MIC2341 and MIC2342. The devices are Dual Channel Hot-Plug Power Controllers that support the power requirements for PCI Express Specification v2.0.

The MIC2341 and MIC2342 augment Micrel's growing PCIe product family and are ideal for high performance enterprise computing network system processor boards, DDR memory boards, embedded systems and gigabit Ethernet add-in cards for the server networks and RAID/storage network markets. The devices are currently available in volume quantities and are priced at $4.54 for 1K quantities.

"The MIC2341 and MIC2342 both offer an integrated solution that minimizes solution component count and lower overall BOM cost," noted Andy Cowell, Micrel's marketing vice president for analog products. "In addition, both ICs feature very rapid response times to potentially catastrophic overcurrent load events, key in mission-critical applications for the server and RAID/storage network markets."

The MIC2341 and MIC2342 provide support for 12V, 3.3V, and 3.3VAUX supplies and are equipped with many features -- including programmable gate voltage slew-rate control, voltage supervision, programmable current limit, and circuit breaker functions. The devices support two independent PCI Express slots, offer integrated power MOSFETS for 3.3VAUX rails with low backfeed on the MAIN +12V and +3.3V rails, an important consideration during standby operation for Wake-on-LAN applications.

The ICs also offer dual-level, dual-speed overcurrent fault protection and a user-programmable primary overcurrent filter to eliminate nuisance tripping. Separate MAIN and AUX overcurrent fault output signals and load card detection (present) switch inputs are also offered. Power will be delivered only when the module/card is fully inserted and power fault isolation allows an unaffected power rail(s) to remain active and accelerates debugging effort(s) when locating a faulty area(s) in the circuit. In addition, the ICs provide system management flexibility in offering either a latched or auto-retry option.

The MAIN output rails of the MIC2342 shut down during an overcurrent fault on AUX for a given slot, whereas MAIN outputs of the MIC2341 are independent of an overcurrent fault occurring on AUX. Both ICs are available in RoHS compliant 48-pin TQFP Pb-free package. All options feature a 0-deg C to +70-deg C ambient temperature range.

About Micrel, Inc.

Micrel Inc., is a leading global manufacturer of IC solutions for the worldwide analog, Ethernet and high bandwidth markets. The Company's products include advanced mixed-signal, analog and power semiconductors; high performance communication, clock management, Ethernet switch and physical layer transceiver ICs. Company customers include leading manufacturers of enterprise, consumer, industrial, mobile, telecommunications, automotive, and computer products.

Corporation headquarters and state-of-the-art wafer fabrication facilities are located in San Jose, CA, with regional sales and support offices and advanced technology design centers situated throughout the Americas, Europe and Asia. In addition, the Company maintains an extensive network of distributors and reps worldwide. Web: http://www.micrel.com.

Note: MLF is a registered trademark of Amkor Technology.

CONTACT: Julieanne DiBene,
Marketing Communications of Micrel Inc.,
+1-408-474-1276,
Julie.DiBene@Micrel.com
Web site: http://www.micrel.com
SOURCE: Micrel Inc.

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