PT4661C [Texas Instruments]

The PT4660 series operates from a standard telecom (–48 V) central office (CO) supply to produce two independently regulated outputs. It features high efficiencies and ultra-fast transient response, and incorporates many features to facilitate system integration, including flexible 'On/Off' enable control, output current limit, over-temperature protection, and an input under-voltage lockout (UVLO). Both output voltages are designed to meet the power-up/power-down sequencing requirements of popular DSPs. The module is housed in a space-saving solderable copper case that does not require a heatsink and is available in vertical, horizontal, and surface mount configurations.