Buck-Boost Converter Calculator

Design inverting buck-boost DC-DC converters. Calculate duty cycle, inductor, capacitor, and peak switch current.

Input Voltage Vin (V)

Output Voltage |Vout| (V)

Output Current Iout (A)

Switching Frequency fsw (kHz)

Ripple Current Ratio r

Output Ripple Target ΔVout (mV)

Duty Cycle D--

Inductor L--

Peak Switch Current--

Ripple Current ΔIL--

Min Output Capacitor--

Avg Inductor Current--