Isolated DC/DC (direct current/direct current) power supply module adopting ultra-wide input range and ultra-low output voltage

The invention discloses an isolated DC/DC (direct current/direct current) power supply module adopting an ultra-wide input range and ultra-low output voltage. The isolated DC/DC power supply module comprises an input booster circuit, an input and output isolating circuit and an output voltage step-down circuit. The power supply module adopts an integrated design by integrating three topological modes of the input booster circuit, the input and output isolating modular circuit and the output voltage step-down circuit, has the ultra-wide input range up to ten times, and can realize full-range 8V-80V input and output of ultra-low voltage of 0.6 V-4 V. The isolated DC/DC power supply module has the characteristics of small size, low cost, high efficiency, high reliability, good heat dissipation and wide application range; the same output function of a plurality of different input modules can be realized only through one power supply module adopting full-range input, and convenience is brought to enterprise standardization management.