After you have entered your requirements on the left, hit the Go button to calculate your component values. If you need to tweek some components, Ct, R1, and the component Tol may be adjusted without hitting Go again.

MC34063 boost calculator

MC34063 Boost calculator actually supports 21 different parts from 5 suppliers. Each variant has a different temperature range, maximum frequency, reference voltage, and so on. This program checks your design against limits for the device selected.

The device you select will populate the temperature range fields. If your application will use a subset of this range, or you intend to use the part out of specification, adjust your temperature range so resistor tempco calculations will be correct.

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