This circuit can drive a white LED from a 3 V supply. The circuit is intended to supply White LEDs that can have trigger voltages from 3.2 to 3.6 V providing a current of 2 mA.

This circuit can drive a white LED from a 3 V supply. The circuit is intended to supply White LEDs that can have trigger voltages from 3.2 to 3.6 V providing a current of 2 mA.