LTspicePowerSim

Four-phase buck — peak current mode

LTspicePowerSim's four-phase 4 A buck, its phases a quarter period apart under one current command.

Press Run: the example simulates in your browser. Open and simulate takes it to the full app, where you can change it.

Try this

Clock phase 3 with phase 2 and watch the input current's ripple double. Then press Run again.