PT4828C [Texas Instruments]

The PT4820 series are isolated triple-output DC/DC converters that operate from a standard (–48V) central office supply. Rated for up to 35W, these regulators are ideal for powering many mixed logic applications. The triple-output voltage combination allows for a compact multiple-output power supply in a single low-profile DC/DC module. The available output voltage options include a low-voltage bus for a DSP or ASIC core, and two additional standard logic supply voltages. Features include dual logic on/off control, input under-voltage lockout, over-temperature protection, short-circuit protection on all outputs, and internal sequencing to meet power-up and power-down requirements of popular DSP ICs. The module requires no external heat sink and can occupy as little as 1.3 in² of PCB area.