DDR Bus Termination Regulator from Diodes Incorporated Handles Upgrades to DDR4

PLANO, Texas — (BUSINESS WIRE) — October 1, 2014 — 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 introduced a low-dropout linear regulator capable of generating bus termination voltages needed by DDR 2, 3, 3L and 4 SDRAM memory systems. For applications including next generation set-top boxes, mother boards and graphics cards, the AP2303 continuously sources and sinks current up to 1.75A and provides a tightly regulated VTT output voltage to DDR standards with an accuracy of ± 2% up to full load.

The required DDR memory termination supply is set via a simple external resistor network and is output via a standard MLCC ceramic capacitor that helps simplify assembly processes and reduce component cost and PCB size. The regulator is offered in a choice of space-saving 8-pin SO and PSOP packages and operates from a recommended input voltage range of 1.2V to 5.5V. Ambient operating temperature range is -40ºC to +85ºC.

To minimize inrush currents induced by large capacitive loads, the AP2303 offers a flexible soft-start facility, activated by a rising voltage on either VCNTL or VREFEN pins. In addition, to help reduce power consumption, a falling voltage applied to VIN, VCNTL or VREFEN pins causes the device to shutdown.

Current limit protection is provided on both source and sink sides, with device output voltage dropping towards 0V once current exceeds 1.75A. Over-temperature protection is also included, with the AP2303 output turning off once junction temperature exceeds +160ºC. Further information is available at www.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, AC-DC converters and controllers, 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. Diodes’ corporate headquarters, logistics center, and Americas' sales office are located in Plano, Texas. Design, marketing, and engineering centers are located in Plano; San Jose, California; Taipei, Taiwan; Manchester, England; and Neuhaus, Germany. Diodes’ wafer fabrication facilities are located in Kansas City, Missouri and Manchester, with two more located in Shanghai, China. In addition, two assembly-test facilities are located in Shanghai; two are located in Chengdu, China, with one in Neuhaus and one in Taipei. Additional engineering, sales, warehouse, and logistics offices are located in Fort Worth, Texas; Taipei; Hong Kong; Manchester; Shanghai; Shenzhen, China; Seongnam-si, South Korea; Suwon, South Korea; Tokyo, Japan; and Munich, Germany, with support offices throughout the world. For further information, including SEC filings, visit Diodes’ website at http://www.diodes.com.



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