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Photo Release -- Alpha And Omega Semiconductor Launches EZBuck(TM) With Enhanced Light Load Operation

SUNNYVALE, Calif., March 19, 2013 (GLOBE NEWSWIRE) -- Alpha and Omega Semiconductor Limited (AOS) (Nasdaq:AOSL), a designer, developer and global supplier of a broad range of power semiconductors and power ICs, today released the AOZ3015, a 3A EZBuck DC/DC regulator optimized for applications that have a standby power mode. The AOZ3015 is ideally suited for point-of-load DC/DC converters, LCD TVs, set-top boxes, DVD and Blu-ray players/recorders and cable modems.


A photo accompanying this release is available at

The AOZ3015 is a high-efficiency and easy-to-use synchronous PWM buck regulator with an input voltage range of 4.5V to 18V. It provides 3A of continuous output current at over 90% efficiency and maintains 85% efficiency while in 10mA light load operation. When operating in low output current conditions, the AOZ3015 will operate in a proprietary pulse energy mode (PEM) to obtain high efficiency. Under heavy load steady-state conditions, the AOZ3015 will operate in fixed frequency and Continuous-Conduction Mode (CCM).

"AOS's proprietary EZBuck technology helps bring our customers compact and high efficiency DC/DC solutions that we can scale to their power requirements," said Dr. Yenju Wang, Product Marketing Director at AOS. "The high-efficiency light load operation feature AOZ3015 makes it an ideal for those power supplies with a stand-by mode mandated by many government agencies worldwide."

Technical Highlights

Input Voltage Range: 4.5V to 18V
MOSFET On-Resistance (typ): High-side (85mOhms)
  Low-side (50mOhms)
Switching Frequency: 500KHz
Package: E-Pad SO-8
Efficiency at 10mA (12V to 5V): 85%
Efficiency at 3A (12V to 5V): 92%

Pricing and Availability

The AOZ3015 is immediately available in production quantities with a lead-time of 12 weeks. The unit price for 1,000 pieces is $0.80.

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