300W Power Supply Has 3.3V Main Output

The NT301 Series of power supplies is a compact, multiple-output, 300W supply featuring a 3.3V, high-current main output and active input power-factor correction. The active PFC circuitry not only provides compliance with EN61000-3-2 specs, but also accommodates a wide-input voltage range of 90 vac to 264 vac for global applications. A two-transistor forward converter that provides a proven architecture for high reliability follows the PFC input stage. The unit's output configurations were developed to support applications in which the circuitry has migrated from 5V to 3.3V. An array of standard output configurations is available.