GS2T12-9 2W LAN DC-DC CONVERTER Vi Vo Io 12 V –9V – 250 mA Type GS2T12-9 DESCRIPTION The GS2T12-9 is a 2.25W DC-DC converter designed to provide power, voltage regulation and isolation for Local Area Network (CHEAPERNET and ETHERNET) transceivers from a wide range of input voltage, according to IEEE 802.3 Standard. ELECTRICAL CHARACTERISTICS (Tamb.= 25° C unless otherwise specified) Symbol Parameter Test Conditions Min Typ Max Unit 11.28 12.00 15.75 V 100 mApp – 9.45 V Vi = 11.28 to 15.75V Io = – 250mA 50 mVRMS Output Noise Voltage Vi = 11.28 to 15.75V Io = – 250mA 75 mVpp Line Regulation Vi = 11.28 to 15.75V Io = – 250mA 5 mV Vi Input Voltage Vo = -9V Iir Reflected Input Current Vi = 11.28 to 15.75V Io = – 250mA Vo = – 9V Vo Output Voltage Vi = 11.28 to 15.75V Io = – 70 to – 250mA Vor Output Ripple Voltage Von δVOL δVOO Io = – 70 to – 250mA – 8.55 Load Regulation Vi = 12V Io Output Current Vi = 11.28 to 15.75V Vo = – 9V Vis Isolation Voltage Input to Output Efficiency Vi = 11.28 to 15.75V Io = – 250mA η – 9.00 Io = – 70 to – 250mA 70 5 mV 250 mA 2500 70 VDC 71 % Top Operating Ambient Temperature Range 0 +70 °C Tstg Storage Temperature Range – 40 +85 °C June 1994 1/2 GS2T12-9 CONNECTION DIAGRAM AND MECHANICAL DATA Package A. 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 - China - 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