Buck Converter has 300 kHz fixed switching frequency.

Press Release Summary:



With input voltage of 10-40 V and adjustable output voltage of 0.8-36 V, Model AP1580 delivers continuous output current up to 3 A. Enable function can power down converter to 2 µA standby mode, making unit suited for Energy Star applications such as LCD and plasma display TVs. Housed in thermally enhanced SOP-8L package, asynchronous PWM converter operates from -40 to 125°C and includes thermal shutdown, current limiting, and short circuit protection.



Original Press Release:



Diodes, Inc. Announces Latest Generation High-Current, High-Voltage PWM Buck Converter



* AP1580 Applications Include LCD Monitors & TVs, Plasma Display Panels, Power Adaptors and Battery Chargers

WESTLAKE VILLAGE, Calif., Jan. 30 /-- Diodes Incorporated (NASDAQ:DIOD), a leading manufacturer and supplier of high-quality discrete and analog semiconductors, today introduced its latest generation 300KHz, 3A Asynchronous PWM Buck Converter -- AP1580. The AP1580 was designed to meet the growing demand for higher efficiencies and smaller form factor packaging required in today's power management designs. The AP1580 with its wide input voltage range of 10V to 40V, and adjustable output voltage from 0.8V to 36V is well suited to support a variety of applications including LCD monitors & TVs, plasma display panels (PDP), power adaptors and battery chargers as well as high end networking and telecommunication equipment.

The AP1580 converter is fully integrated with an internal switch and is capable of delivering continuous output current up to 3A with excellent line and load regulation characteristics. Higher efficiency is obtained through the use of a low Rdson (80 milliOhms) NMOS power switch. The new AP1580 converter has a 300KHz fixed switching frequency, which allows the use of smaller external components, thus minimizing required PC board area and total bill of materials cost. In addition, the AP1580 has an enable function that can power down the converter to a low 2 microamperes standby mode making it ideal for use in Energy Star applications such as LCD and plasma display TVs. Additional features integrated to increase reliability are thermal shutdown, current limiting and short circuit protect. A high performance voltage error amplifier is also implemented on-chip to provide tight voltage regulation accuracy under transient conditions. The feedback loop is also internally compensated thus eliminating the need for additional external components. The AP1580 results in a simple to implement and cost effective power conversion solution offering high power efficiency in a compact form factor.

"In conjunction with the release of the new AP1580 product, we also introduce the SOP-8L package now manufactured at our Diodes-China facility," commented Mark King, Diodes' Sr. VP of Sales and Marketing. "The introduction of the AP1580 converter demonstrates our commitment to expand and innovate our analog products and provide useful solutions targeted at important high volume electronic devices like LCD and plasma display TVs."

Offered in the small, thermally enhanced, SOP-8L package, the AP1580 requires 5 times less PCB area than the standard TO-220 or TO-263 packages typically used to support 3A drive currents. The AP1580 wide operating junction temperature ranges from -40 degrees Celsius to 125 degrees Celsius making it well suited to support extended temperature requirements for commercial to industrial applications.

About Diodes Incorporated
Diodes Incorporated (NASDAQ:DIOD), an S&P SmallCap 600 Index company, is a leading manufacturer and supplier of high-quality discrete and analog semiconductor products, primarily to the communications, computing, industrial, consumer electronics and automotive markets. The Company has its Corporate sales, marketing, engineering and logistics headquarters in Southern California; Design Centers in Dallas and San Jose; wafer fabrication plant in Missouri; two manufacturing plants in Shanghai; fabless analog IC plant in Hsinchu Science Park, Taiwan; engineering, sales, warehouse and logistics offices in Taipei and Hong Kong, and sales and support offices throughout the world. With its recent asset acquisition of APD Semiconductor, a privately held U.S.-based fabless discrete semiconductor company, Diodes acquired proprietary SBR(R) technology.

Diodes' product focus is on subminiature surface-mount discrete devices, analog power management ICs and Hall-effect sensors all of which are widely used in end-user equipment such as TV/Satellite set top boxes, portable DVD players, datacom devices, ADSL modems, power supplies, medical devices, wireless notebooks, flat panel displays, digital cameras, digital audio players, mobile handsets, DC to DC conversion, Wireless 802.11 LAN access points, brushless DC motor fans, and automotive applications. For further information, please visit our website at www.diodes.com.

SBR is a registered trademark of Diodes Incorporated.

Recent news releases, annual reports, and SEC filings are available at the Company's website: www.diodes.com/. Written requests may be sent directly to the Company, or they may be e-mailed to: diodes-fin@diodes.com.

CONTACT: Mark King, Sr. VP, Sales & Marketing of Diodes Incorporated, +1-805-446-4800

Web site: www.diodes.com/

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