I am building a Buck boost converter which works on 32Khz using Irfz44n.Is it mandatory to use a driver IC to drive the MOSFET ? Can anyone explain it with some calculations.I am using Gate resistor of 100ohm and a pull down resistor (for MOSFET's Gate) of 10k.

Using Irfz44n with Attiny85

Grumpy_Mike October 5, 2017, 1:37pm 2

Is it mandatory to use a driver IC to drive the MOSFET

With that FET yes it is. Because you need a 10V gate signal to turn it on.

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