DC1389A - LTC3521EUF Demo Board | Buck-Boost Plus Dual Buck, 2.4V ≤ VIN ≤ 5V, Vout1 = 3.3V @ 0.8A, Vout2=1.2V @ 0.6A, Vout3 = 1.8V @ 0.6A

Demonstration circuit 1389A is high efficiency triple output DC/DC power supply featuring the LTC3521. The IC includes a 4-switch synchronous Buck-Boost DC/DC converter with a 1A switch rating and two synchronous 600mA Buck converters. The demo board accepts an input voltage between 2.4V and 5V, and provides fixed output voltages of 3.3V @800mA for the Buck-Boost converter and 1.2V & 1.8V @600mA for the Buck converters.

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
- LTC3521 Demo Circuit - 1A Buck-Boost & Dual 600mA Buck DC/DC Converters (2.4-5V to 3.3V @ 1A, 1.8V @ 600mA & 1.2V @ 600mA)
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.