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DC1520A - LT3690EUFE Demo Board | 4.5V ≤ VIN ≤ 36V, VOUT = 3.3V @ 4A, Fsw=450kHz

Demonstration circuit 1520A is a 36V, 4A synchronous Buck Regulator with 70μA Quiescent Current featuring the LT3690. The demo board is designed for 3.3V output from a 4.5V to 36V input with transient up to 60V. The wide input range of the LT3690 allows a variety of input sources, such as automotive batteries and industrial supplies. The switching frequency can be programmed either via oscillator resistor or external clock over a 170kHz to 1.5MHz range.

DC1520A - Schematic

 


Software

LTspice

LTspice® software is a powerful, fast and free simulation tool, schematic capture and waveform viewer with enhancements and models for improving the simulation of switching regulators. Click here to download LTspice

To launch a ready to run LTspice demonstration circuit for this part:

  • Step 1: If you have not installed LTspice on this computer, download and install LTspice
  • Step 2: Once LTspice is installed, click on the link(s) below to launch the simulation
  • Step 3: If LTspice does not automatically open after clicking the link above, you can instead run the simulation by right clicking on the link and selecting "Save Target As." After saving the file to your computer, start LTspice and open the demonstration circuit by selecting 'Open' from the 'File' menu

To explore other ready to run LTspice demonstration circuits, please visit our Demo Circuits Collection.