DC2129A

Demonstration circuit 2129A features the LTC®3119, an 18V, 5A synchronous buck/boost DC/DC converter. The DC2129A has been designed for an input voltage range of 2.5V to 18V with an output voltage (VOUT) set to 5V. For VIN <gt/> 5V the output current can be as high as 5A. The unique 4-switch, single inductor architecture provides low noise and seamless operation from input voltages above, below, or equal to the output voltage. The LTC3119 features selectable PWM or Burst Mode® operation, and an easily synchronizable oscillator. A jumper JP3, is provided to select the operating mode. A clock signal can also be applied to JP3 if synchronization is desired. The demo board is configured for a switching frequency of 750KHz. Jumper JP1 is provided to enable the converter. Resistors R8 and R9 can be used to set an accurate turn-on voltage of the converter.

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party