PT4841A [Rochester]

The PT4840 series are isolated triple-output DC/DC converters designed for DSL applications, operating from a standard –48V central office supply with input voltage range of 36V to 75V. They provide up to 65W total output power with three independently regulated outputs for powering analog support circuitry, digital I/O, and low-voltage processor cores. The modules feature fixed frequency operation, over-temperature shutdown, under-voltage lockout, current limiting, and short-circuit protection on all outputs. They incorporate flexible On/Off control (EN1 and EN2 pins) and meet power-up/down sequencing requirements of popular DSP ICs. The space-saving solderable copper case requires no external heat sink and occupies as little as 1.97 in² PCB area. Safety approvals include UL60950, CSA 22.2 950, and VDE EN60950.