The LM2567 DC DC converter is intended for use in LAN applications as a power supply for the DP8392 Coaxial Transceiver The converter may be operated from an input voltage of 5V ( g 10%) to 15V It provides an isolated output of b9V for loads of up to 180 mA with an efficiency of 78% (typical) The few external components required for the converter are completely specified within this datasheet Protection features for the LM2567-based DC DC converter include thermal and current limit Undervoltage lockout and soft-start are incorporated to minimize the inrush current during start-up