DC1379B

DC1379B is a demonstration circuit 1379B which is a step-down DC/DC switching regulator featuring the LTM®8025 µModule® regulator. The demo board is designed to deliver a 3.3V output from a 5.5V to 36V input. The wide input range of the LTM8025 allows a variety of input sources such as automotive batteries, wall adaptors and industrial supplies. The modes of operation (Burst Mode® operation or synchronization) are jumper-selectable. Burst Mode operation improves efficiency at light loads. The LTM8025 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.

• 750KHz switching frequency
• 3A output current

Ghi chú

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