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Single Supply LDOs feature max dropout voltage of 140 mV.

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January 22, 2014 - Supporting 2 and 3 A loads, Models XRP6274 and XRP6275 operate with low voltage rails of 1.1–2.5 V, providing single supply solution for point-of-load voltage regulation. Units achieve ultra low dropout performance without external bias voltage or internal charge pump. Startup is guaranteed from input voltage as low as 1.045 V. Using ceramic capacitors, devices provide output voltages down to 0.6 V with accuracy of 0.5%. Precision enable and power good functions allow for sequencing and control.

Exar Releases World's Lowest Voltage Single Supply LDOs with 140mV Dropout


Exar
48720 Kato Road
Fremont, CA, 94538
USA



Press release date: January 15, 2014

XRP6274/75 2A/3A LDOs Operate Down to 1.045V V(IN) Requiring No External Bias

FREMONT, Calif. -- Exar Corporation (NYSE: EXAR), a leading supplier of high performance analog mixed-signal components and data management solutions, announced two ground breaking low-dropout (LDO) regulators that support 2A and 3A loads from a single low voltage supply with a maximum dropout voltage of 140mV. The XRP6274 and XRP6275 ultra low dropout voltage regulators can operate with industry standard low voltage rails of 1.1V to 2.5V providing a unique single supply solution for convenient point-of-load voltage regulation. The new LDOs are targeted at a wide range of markets including communications, enterprise solutions, industrial systems and space constrained consumer devices.

Exar achieves the ultra low dropout performance of its XRP6274 and XRP6275 regulators without requiring either an external bias voltage or an internal charge pump, which can often generate unwanted noise and affect system operation. The new ultra LDO's use a single supply and reduce board layout complexity by avoiding the need to route a secondary bias rail to the LDO. The start up is guaranteed from an input voltage as low as 1.045V. The XRP6274/75 devices provide output voltages down to 0.6V with an accuracy of 0.5%  using ceramic capacitors. In addition, precision enable and power good functions allow for easy sequencing and control of these LDOs.

"As system designers chase performance per watt metrics, the number of low voltage rails is proliferating" said James Lougheed, vice president, power management, Exar.  "To help system designers with this trend, the XRP6274/75 devices offer unprecedented single supply conversions, removing the need for routing bias rails in ever increasing dense board layouts.  These LDOs halve the dropout of the closest competitors."

Product Availability and Pricing
The XRP6274 and XRP6275 are available now in RoHS compliant, green/halogen free space-saving 10-pin 3x3mm DFN packages and are priced from $3.20 and $3.60 respectively in 1000 piece quantities.

Additional Information
Additional information on the XRP6274 and XRP6275 is also available online.
Additional information on Exar's DC-DC power conversion products is also available online.

About Exar
Exar Corporation designs, develops and markets high performance, analog mixed-signal integrated circuits and advanced sub-system solutions for the Networking & Storage, Industrial & Embedded Systems, and Communications Infrastructure markets.  Exar's product portfolio includes power management and connectivity components, communications products, high performance analog mixed-signal products and network security and storage optimization solutions. Exar has locations worldwide providing real-time customer support.  For more information about Exar, visit http://www.exar.com.

CONTACT: Exar Media Relations, +1 510-668-7000, Email:  press@exar.com
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