PTB48511AAS [Texas Instruments]

The PTB4851x series of isolated DC/DC converter modules produce a complementary pair of regulated supply voltages for powering line-driver ICs in xDSL telecom applications. The modules operate from a standard telecom (–48 V) central office (CO) supply and can provide up to a 72 W of power in a balanced load configuration. Both the PTB48510 and PTB48511 include an 'on/off' enable control, output current limit, over-temperature protection, and input under-voltage lockout (UVLO). The PTB48511 adds output over-voltage protection (OVP). The control inputs, Enable and Sync In, are compatible with the EN Out and Sync Out signals of the PTB48500 DC/DC converter. The PTB4851x uses double-sided surface mount technology construction. The package size is based on the industry standard outline and does not require a heatsink. Both through-hole and surface mount pin configurations are available.