# GS2TX-9A DC-DC Converter

## Overview
· 2.25W unregulated DC-DC converter for LAN (CHEAPERNET/ETHERNET) transceivers.
· Compliant with IEEE 802.3 Standard.
· Includes soft-start circuitry.

## Electrical Characteristics
· Input Voltage (Vi): 4.5V to 15.75V
· Output Voltage (Vo): -9V
· Output Current (Io): 0 to -250mA
· Output Ripple Voltage (Vor): 7-10mV RMS (Vi=5V), 2-5mV RMS (Vi=12V)
· Line Regulation (δVOL): 5mV
· Load Regulation (δVOO): 5mV
· Isolation Voltage (Vis): 2500V DC
· Efficiency (η): 70-73% (Vi=5V), 75-80% (Vi=12V)
· Operating Temperature: 0°C to +70°C
· Storage Temperature: -40°C to +85°C

## Pin Configuration

· 1: +Vin
· 2: -Vin
· 3: NC (No Connect)
· 4: +Vout
· 5: -Vout

## Important Notes
· Output ripple voltage may increase with input voltages < 5V and output currents < 20mA due to discontinuous operation.
· Device is not authorized for use in life support systems without approval.