Temperature drift

The amount of output fluctuation in a power supply circuit due to changes in ambient temperature. Normally, the output at the maximum and minimum specified temperatures and the output at room temperature are measured. The change in output when the ambient temperature varies by 1°C may also be expressed as a percentage. To obtain stable output, a smaller temperature drift is desirable. Initial drift, which is the output fluctuation from power-on until each internal component reaches its continuous operating temperature, is also a type of temperature drift.