PT4665C [Texas Instruments]

The PT4660 series operates from a standard telecom (–48 V) central office supply to produce two independently regulated outputs. It features high efficiencies, ultra-fast transient response, and system integration capabilities including flexible On/Off enable control, output current limit, over-temperature protection, and input under-voltage lockout. Both outputs meet power-up/power-down sequencing requirements for DSPs. The module uses a space-saving solderable copper case without heatsink, available in vertical, horizontal, and surface-mount configurations.