Buck/Boost Converter Calculator - Inductor, Capacitor, Feedback | Brazy Tools

Vin (Input) * Volts (V)

Vout (Output) * Volts (V)

Iout (Load) * Amperes (A)

Switching Frequency * Hertz (Hz)

Inductor Ripple Current % of Iout

Output Voltage Ripple Volts (V)

12V → 5V @ 1A 24V → 5V @ 2A 5V → 3.3V @ 0.5A

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Buck converter specifications

Buck

Vin
12V → Switch
Q1 → Inductor
— → Capacitor
— → Vout
5V

Buck Converter Topology

Vin (Input) * Volts (V)

Vout (Output) * Volts (V)

Iout (Load) * Amperes (A)

Switching Frequency * Hertz (Hz)

Inductor Ripple Current % of Iout

Output Voltage Ripple Volts (V)

3.7V → 12V @ 0.5A 5V → 24V @ 0.3A

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Boost converter specifications

Boost

Vin
3.7V → Inductor
— → Switch
Q1 → Diode
D1 → Vout
12V

Boost Converter Topology

Vin (Input) * Volts (V)

Vout (Output) * Volts (V) - Negative output

Iout (Load) * Amperes (A)

Switching Frequency * Hertz (Hz)

Inductor Ripple Current % of Iout

Output Voltage Ripple Volts (V)

12V → -12V @ 0.5A 5V → -5V @ 1A

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Buck-boost converter specifications

Buck-Boost

Vin
12V → Switch
Q1 → Inductor
— → Diode
D1 → Vout
-12V

Buck-Boost (Inverting) Topology