G5E1286

Page: 4/4

ISSUED DATE :2005/07/11

REVISED DATE :2006/03/29B

Stability

The G5E1286-XX requires the use of an output capacitor as part of the frequency compensation in order to make the

regulator stable. Typical designs for the microprocessor application use standard electrolytic with typical ESR in the range

of 50 to 100m and an output capacitance of 100uF to 1000uF. Fortunately as the capacitance increases, the ESR

decreases resulting in a fixed RC time constant. The G5E1286-XX takes advantage of the phenomena in making the

overall regulator loop stable. For most applications a minimum of 100uF aluminum electrolytic capacitor insures both

stability and good transient response.

Thermal Design

The G5E1286-XX incorporates an internal thermal shutdown that protects the device when the junction temperature

exceeds the maximum allowable junction temperatures. Although this device can operate with junction temperatures in the

range of 150 : , it is recommended that the selected heat sink be chosen such that during maximum continuous load

operation, the junction temperature is kept below this number.

Important Notice:

All rights are reserved. Reproduction in whole or in part is prohibited without the prior written approval of GTM.

GTM reserves the right to make changes to its products without notice.

GTM semiconductor products are not warranted to be suitable for use in life-support Applications, or systems.

GTM assumes no liability for any consequence of customer product design, infringement of patents, or application assistance.

Head Office And Factory:

Taiwan: No. 17-1 Tatung Rd. Fu Kou Hsin-Chu Industrial Park, Hsin-Chu, Taiwan, R. O. C.

TEL : 886-3-597-7061 FAX : 886-3-597-9220, 597-0785

China: (201203) No.255, Jang-Jiang Tsai-Lueng RD. , Pu-Dung-Hsin District, Shang-Hai City, China

TEL : 86-21-5895-7671 ~ 4 FAX : 86-21-38950165