GS2TX-9 Datasheet, PDF (1/2 Pages) STMicroelectronics – 2 W LAN DC-DC CONVERTER

GS2TX-9
2 W LAN DC-DC CONVERTER
Type
GS2TX-9
V_in
4,5 to 15,75 V
V_out
9V
I_out
250 mA
DESCRIPTION
The GS2TX-9 is a 2.25W unregulated DC-DC con-
verter designed to provide power, voltage regula-
tion 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
Vi
Iir
lir
Vo
Parameter
Input Voltage
Input Reflected
Current
Input Reflected
Current
Output Voltage
Vor Output Ripple
Voltage
Vor Output Ripple
Voltage
δVo Line Regulation
δVo Load Regulation
Io
Output Current*
Vis Isolation Voltage
η
Efficiency
η
Efficiency
Top Operating Ambient
Temperature Range
Tstg Storage Temperature
Range
Test Conditions
Vo= 9V
Io= 0 to 250mA
Vi= 5V
Vo= -9V
Io = 250mA
Vi = 12V
Vo = -9V Io = 250mA
Vi= 4.5 to 15.75V
Io= 0 to 250mA
Vi= 5V
Io= 250mA
Vi= 12V
Io= 250mA
Vi= 4.75 to 5.5V
Vi= 4.5 to 15.75V
Vi= 4.5 to 15.75V
Io= 250mA
Io= 20 to 250mA
Vo = -9V
Vi= 5V Io= 250mA
Vi= 12V Io= 250mA
Min Typ Max Unit
4.5
15.75 V
25 30 mApp
2
5 mApp
-8.55 -9.00 -9.45 V
7
10 mVrms
2
5 mVrms
0
2500
70 73
75 80
0
5 mV
5 mV
250 mA
Vdc
%
%
+70 °C
-40
+85 °C
* When the input voltage is <5V and the output current is less than 20mA, the output ripple voltage increases due to discontinuous operation.
December 1993
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