LTM8025EV DC to DC Converter and Switching Regulator Chip 3.135VDC to 3.465VDC Output Demonstration Circuit
The demonstration board is a step down DC to DC switching regulator featuring LTM8025EV µModule regulator. The LTM8025 is a 36VIN, 3A step down µModule converter. Included in the IC package are the switching controller, power switches, inductor and all support components. The demonstration board is designed to deliver a 3.3V output from a 5.5V to 36V input. The modes of operation Burst mode operation or synchronization are jumper selectable. Burst mode operation improves efficiency at light loads. The LTM8025EV can be synchronized over a 250KHz to 2MHz range. The current mode control scheme creates fast transient response and good loop stability. The RUN/SS pin can be used to set the part in micropower shutdown mode reducing the supply current to less than 1µA. The RUN/SS pin can also be used to program soft start. In this mode, the RUN/SS pin is driven through an external RC filter to create a voltage ramp on this pin reducing the input current surge during start up.
If there is no output, temporarily disconnect the load to ensure that the load is not set too high.