GS2T5-9 2 W LAN DC-DC CONVERTER Type GS2T5-9 Vin Vout Iout 5V 9V 250 mA DESCRIPTION The GS2T5-9 is a 2.25W unregulated DC-DC converter designed to provide power, voltage regulation and isolation for Local Area Network (CHEAPERNET and ETHERNET) transceivers from a standard 5V input voltage, according to IEEE 802.3 Standard. ELECTRICAL CHARACTERISTICS (Tamb.= 25° C unless otherwise specified) Symbol Parameter Test Conditions Min Typ Max Unit 4.5 5 5.5 V 25 30 mApp -9.00 -9.45 V 7 10 mVrms Vi Input Voltage Vo= -9V Io= 0 to 250mA Iir Input Reflected Current Vi= 5V Vo = -9V Io = 250mA Vo Output Voltage Vi= 4.5 to 5.5V Io= 0 to 250mA Vor Output Ripple Voltage Vi= 5V Io = 250mA δVo Line Regulation Vi = 4.5 to 5.5 Io = 250mA 5 mV δVo Load Regulation Vi = 5V Io = 20 to 250mA 5 mV Io Output Current* Vi = 4.5 to 5.5V Vo = -9V 250 mA Vis Isolation Voltage η Efficiency -8.55 0 2500 Vi= 5V Io= 250mA 70 Vdc 73 % Top Operating Temperature Range 0 +70 °C Tstg Storage Temperature Range -40 +85 °C * Note: when output current is less than 20mA, the output ripple voltage increases due to discontinuous operation. December 1993 1/2 GS2T5-9 CONNECTION DIAGRAM AND MECHANICAL DATA Package B. Dimensions in mm (inches) Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specification mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. SGS-THOMSON Microelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of SGS-THOMSON Microelectronics. © 1994 SGS-THOMSON Microelectronics – All Rights Reserved SGS-THOMSON Microelectronics GROUP OF COMPANIES Australia - Brazil - France - Germany - Hong Kong - Italy - Japan - Korea - Malaysia - Malta - Morocco - The Netherlands Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A. 2/2