DC-DC Converters feature input voltage range of 4.5-27 V.January 9, 2008 -
Suited for powering wide range of networking, consumer, and industrial applications, Models AOZ1210 and AOZ1212 are rated at 2 and 3 A, respectively. Current-mode PWM step down regulators come with integrated high side NMOS switch, and feature discrete MOSFET technology that enables RDS (ON) as low as 70 mW. Duty cycle can be adjusted from 6-85%, allowing wide range of output voltages with 0.8 V minimum output voltage.
(Archive News Story - Products mentioned in this Archive News Story may or may not be available from the manufacturer.)
Original Press release
Alpha & Omega Semiconductor, Inc
495, Mercury Drive
Sunnyvale, CA, 94085
USA
Alpha & Omega Semiconductor Extends EZBuck(TM) DC-DC Converter Family
New products offer wide input voltage range and higher efficiency than competition
Sunnyvale, CA, December 13, 2007 - Alpha & Omega Semiconductor, Inc. (AOS), extends their EZBuck(TM) family of products with two new buck regulators. The AOZ1210 and AOZ1212 feature a wide input voltage range of 4.5V to 27V and are rated at 2A and 3A, respectively. The new products are ideally suited for powering a wide range of networking, consumer, and industrial applications such as cable and DSL modems, set-top boxes, portable navigation devices, portable DVD players, DVD recorders, LCD TVs, and industrial control systems.
"Many systems have multiple voltage rails available such as 5V, 12V, and 24V that need to be stepped down to power lower voltage circuits. This wide voltage range creates a challenge for power designers who are looking for a single DC-DC solution that can be used for all input voltage rails. With its 4.5V to 27V input operating range, AOS' new
EZBuck(TM) family provides a single versatile solution, thus reducing design complexity and development time," said Ralph Monteiro, Director of Power IC Marketing at AOS.
"In addition, when compared to competing solutions, the new products can offer up to 2% higher efficiency in typical conversions from 24V input to 5V output," said Monteiro.
Technical Highlights
The AOZ1210 and AOZ1212 further enrich the EZBuck portfolio by offering a solution for higher input voltage systems. This family of products also leverages the unique combination of discrete MOSFET design, IC expertise and packaging capability from AOS to provide customers with cost effective, high performance solutions.
The new devices are current-mode PWM step down regulators with an integrated high side NMOS switch. AOS' discrete MOSFET technology enables RDS(ON) as low as 70mOhm, thus reducing power losses. The duty cycle can be adjusted from 6% to 85% allowing a wide range of output voltages with minimum output voltages as low as 0.8V.
The new offerings feature a TTL compatible enable input and also have a fixed internal soft start time of 4ms. The devices are protected with features such as input under-voltage lockout, cycle-by-cycle current limit and thermal shutdown.
The AOZ1210 is available in SO-8 package while the AOZ1212 is available in both SO-8 and DFN5x4-8L package options. The DFN package has improved thermal performance allowing operation in higher ambient temperature conditions.
Pricing and Specifications
The AOZ1210 and AOZ1212 are available immediately in production quantities. The table below shows brief specifications and pricing.
Part Package Min Max Max Min Operating Price
Number V(IN) V(IN) I(OUT) V(OUT) Freq. $US
(V) (V) (A) (V) (kHz) (1K pcs)
AOZ1210AI SO-8 4.5 27 2 0.8 370 0.71
AOZ1212AI SO-8 4.5 27 3 0.8 370 0.77
AOZ1212DI DFN5x4-8 4.5 27 3 0.8 370 0.82
About AOS
Alpha & Omega Semiconductor, Inc. is a fabless semiconductor company that develops leading-edge analog power management solutions. AOS offers a wide portfolio of power MOSFET, Power IC and Transient Voltage Suppressor products that incorporate advances in device design, silicon and packaging technologies. AOS's products meet the everincreasing performance and power efficiency requirements in high volume consumer applications such as portable and desktop computers, digital cameras, cell phones and LCD panels. AOS has offices and sales representatives worldwide including the Americas, Europe and Asia Pacific. For more information, please visit www.aosmd.com.
Alpha & Omega Semiconductor, Inc.
495 Mercury Drive
Sunnyvale
California 94085 USA
Tel: 408.830.9742
Fax: 408.830.9749
www.aosmd.com
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