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Diodes Incorporated's Charge Pump Simplifies
LED Driving in Portable Products

Capable of handling the competing requirements of LED driving in LCD backlighting and flashlight or camera flash circuits

Diodes Incorporated Press Release

FlashlightNews.org - 4/1/2011


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Diodes Incorporated

Diodes Incorporated

DALLAS, Tx. - Diodes Incorporated (Nasdaq: DIOD), a leading global manufacturer and supplier of high-quality application specific standard products within the broad discrete, logic and analog semiconductor markets, today announced the release of the AL3157, a dual function charge pump capable of handling the competing requirements of LED driving in LCD backlighting and flashlight or camera flash circuits. Provided in the compact 12-pin 3mm x 3mm DFN package and needing the support of only three external capacitors, the device is well suited to portable, battery powered products such as ruggedized mobile phones.

Operating from a regular 2.7V to 5.5V supply, this high efficiency charge pump drives 3 channels at up to 30mA for small LCD screen backlighting and a separate channel at up to 210mA for LED flashlight or LED camera flash. Its 93% power efficiency increases battery life and therefore mobile phone talk time, while its 1% current matching accuracy between channels ensures consistency in backlighting resulting in a higher quality screen image.

Simple to control, the AL3157 uses only 2 enable pins to enable and disable the associated LCD backlighting and camera flash output channels and to dim the LED current delivered using pulse width modulation. To maximize reliability, all output channels incorporate short-circuit, thermal and under-voltage lockout protection. For further information, visit the Company's website at diodes.com.

About Diodes Incorporated

Diodes Incorporated (Nasdaq: DIOD), a Standard and Poor's SmallCap 600 and Russell 3000 Index company, is a leading global manufacturer and supplier of high-quality application specific standard products within the broad discrete, logic, and analog semiconductor markets. Diodes serves the consumer electronics, computing, communications, industrial, and automotive markets. Diodes' products include diodes, rectifiers, transistors, MOSFETs, protection devices, functional specific arrays, single gate logic, amplifiers and comparators, Hall-effect and temperature sensors; power management devices, including LED drivers, DC-DC switching and linear voltage regulators, and voltage references along with special function devices, such as USB power switches, load switches, voltage supervisors, and motor controllers.

The Company's corporate headquarters, logistics center, and Americas' sales office are located in Dallas, Texas. Design, marketing, and engineering centers are located in Dallas; San Jose, California; Taipei, Taiwan; Manchester, England; and Neuhaus, Germany. The Company's wafer fabrication facilities are located in Kansas City, Missouri and Manchester, with two manufacturing facilities located in Shanghai, China, another in Neuhaus, and a joint venture facility located in Chengdu, China. Additional engineering, sales, warehouse, and logistics offices are located in Taipei; Hong Kong; Manchester; and Munich, Germany; with support offices located throughout the world.

For further information, including SEC filings, visit the Company's website at diodes.com.

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