Category: Power Solutions

SEOUL, South Korea and CUPERTINO, Calif., Sept. 19, 2011 – MagnaChip Semiconductor Corporation (“MagnaChip Semiconductor”) (NYSE: MX), a Korea-based designer and manufacturer of analog and mixed-signal semiconductor products, has launched a series of 4 channel LED drivers for use in LED monitors and LED-TV applications

These new device drivers from MagnaChip are designed to fit the back light unit structures of the latest LED monitors and televisions. Each channel has the equivalent of a 150mA/65V current balance MOSFET embedded in it that is capable of driving up to 20 LEDs in a 40W LED backlight unit.

Operating efficiency and safety have been enhanced through a multitude of designed-in protection functions including current overload protection, LED open/short protection, over voltage protection, open Schottky diode protection and others. The new products are offered in various package and performance options and specifications can be found on the company’s website at www.magnachip.com.

HK Kim, executive vice president of MagnaChip’s Power Solutions Division stated, “There is advanced technology behind the development and launch of all of our new products, including our latest 4-channel LED driver. We intend to continue to innovate and expand the delivery of new and competitive LED driver devices into the 3D TV and Smart TV markets which we see as providing significant growth opportunities for our Power Solutions business.”

About MagnaChip Semiconductor

Headquartered in South Korea, MagnaChip Semiconductor is a Korea-based designer and manufacturer of analog and mixed-signal semiconductor products for high volume consumer applications. MagnaChip Semiconductor believes it has one of the broadest and deepest range of analog and mixed-signal semiconductor platforms in the industry, supported by its 30-year operating history, a large portfolio of registered and pending patents, and extensive engineering and manufacturing process expertise.

CONTACTS:

In the United States:

Robert Pursel
Director of Investor Relations
Tel. 408-625-1262
robert.pursel@magnachip.com

In Korea:

Chankeun Park
Senior Manager, Public Relations
Tel.+82-2-6903-3195
chankeun.park@magnachip.com

MagnaChip Semiconductor Corporation (“MagnaChip Semiconductor”) (NYSE: MX), a Korea-based designer and manufacturer of analog and mixed-signal semiconductor products, has launched 27 new low voltage (LV) MOSFET standard devices this year, reinforcing the company’s growing LV MOSFET product portfolio.

The new products include a recently released series of 30V low voltage devices operating in the range of 10amps to 30amps, with a minimized die size made possible through the company’s latest Trench Technology. The new products have improved power efficiency, heat characteristics and switching performance. Customers now have various package size options including DPAK, DFN56, DFN33, SO8, and IPAK, taking into account the unique and diverse design environments encountered.

HK Kim, executive vice president of MagnaChip’s Power Solutions Division commented, “We continue to deliver state of the art MOSFET products addressing the specialized needs of our growing computing, consumer and industrial customer base. We are also planning to launch a dual series device combining both a high-side MOSFET and low-side MOSFET in one package, further enhancing the performance of our new products.”

About MagnaChip Semiconductor

Headquartered in South Korea, MagnaChip Semiconductor is a Korea-based designer and manufacturer of analog and mixed-signal semiconductor products for high volume consumer applications. MagnaChip Semiconductor believes it has one of the broadest and deepest ranges of analog and mixed-signal semiconductor platforms in the industry, supported by the company’s 30-year operating history, its large portfolio of registered and pending patents, and extensive engineering and manufacturing process expertise.

CONTACTS:

In the United States:

Robert Pursel
Director of Investor Relations
Tel. 408-625-1262
robert.pursel@magnachip.com

In Korea:

Chankeun Park
Senior Manager, Public Relations
Tel. +82-2-6903-3195
chankeun.park@magnachip.com

SEOUL, South Korea, August 22, 2011 — MagnaChip Semiconductor Corporation (“MagnaChip
Semiconductor”) (NYSE: MX), a Korea-based designer and manufacturer of analog and mixed-signal
semiconductor products, announced that it now offers ultra high voltage 700V BCD (Bipolar
CMOS-DMOS) technology targeting smartgrid and green energy applications such as AC-DC adaptors and LED lighting to meet the specialized needs of foundry customers.

The new ultra high voltage 700V BCD technology features lower conduction and switching loss by
integrating low voltage CMOS (5.5V), medium voltage (30V), and ultra high voltage (700V) in a single
process to meet the requirements of AC-DC SMPS (Switching Mode Power Supply) and LED indoor / outdoor lighting applications.

MagnaChip offers a cost competitive and highly reliable one-chip solution that integrates a discrete
controller and a start-up function together. This sustains the ultra high breakdown voltage up to 800V
while maintaining the low and medium voltage performance. The one-chip solution gives customers the design flexibility to meet a myriad of unique requirements by integrating more functions into a single die.

MagnaChip also offers multiple device options, including N/P-MOS, pEDMOS, nLDMOS, parasitic NPN BJT, high resistance poly, and Zener diodes. The first product from the new ultra high voltage BCD technology is under qualification and volume production is scheduled to begin in November of this year.

TJ Lee, senior vice president and general manager of MagnaChip’s Corporate and SMS Engineering,
commented, “We are very pleased to announce the offering of our robust application-specific ultra high voltage 700V BCD technology to meet the increasing demand for smartgrid and green energy
applications. The new UHV technology will provide our foundry customers with design flexibility to cope with the changing market demand. We expect to expand our application specific technology portfolio as we continually seek to address the specialized needs of our foundry customers going forward.”

About MagnaChip Semiconductor
Headquartered in South Korea, MagnaChip Semiconductor is a Korea-based designer and
manufacturer of analog and mixed-signal semiconductor products for high volume consumer
applications. MagnaChip Semiconductor believes it has one of the broadest and deepest range of
analog and mixed-signal semiconductor platforms in the industry, supported by its 30-year operating
history, a large portfolio of registered and pending patents, and extensive engineering and
manufacturing process expertise.

CONTACTS:
In the United States:
Robert Pursel
Director of Investor Relations
Tel. 408-625-1262
robert.pursel@magnachip.com

In Korea:
Chankeun Park
Senior Manager, Public Relations
Tel. +82-2-6903-3195
chankeun.park@magnachip.com