GS2T12-9S datasheet(1/2 Pages) STMICROELECTRONICS

Part #	GS2T12-9S

Description	2 W LAN DC-DC CONVERTER

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

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GS2T12-9S

2 W LAN DC-DC CONVERTER

December 1993

1/2

Type

Vin

Vout

Iout

GS2T12-9S

9,5 to 15,75 V

9 V

250 mA

DESCRIPTION

The GS2T12-9S is a 2.25W unregulated DC-DC

converter designed to provide power, voltage regu-

lation and isolation for Local Area Network

(CHEAPERNET and ETHERNET) transceivers

from a wide range of input voltage, according to

IEEE 802.3 Standard.

Enable function, active high, is available with

CMOS/TTL logic operation compatibility.

ELECTRICAL CHARACTERISTICS (Tamb.=25

° C unless otherwise specified)

Symbol

Parameter

Test Conditions

Min

Typ

Max

Unit

Vi

Input Voltage

Vo= -9V

Io= 0 to 250mA

9.50

12

15.75

V

Vir

Input Ripple

Vi = 12V

Io = 250mA

45

75

mVpp

Iir

Reflected Input

Current

Vi= 12V

Io= 250mA

10

20

mApp

lien

Enable Input Current

Vi = 9.50 to 15.75V

0.2

mA

Vo

Output Voltage

Vi= 9.50 to 15.75V

Io= 0 to 250mA

-8.55

-9.00

-9.45

V

Vor

Output Ripple Voltage

Vi= 12V

Io = 250mA

30

70

mVpp

Vis

Isolation Voltage

Input to Output

2500

Vdc

η

Efficiency

Vi= 12V

Io= 250mA

68

71

%

Top

Operating Ambient

Temperature Range

0

+70

°C

Tstg

Storage Temperature

Range

-40

+85

°C

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GS2T12-9S Datasheet(PDF) 1 Page - STMicroelectronics

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