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0.9V Boost Driver for White LEDs
The PR4401 is a single cell step-up converter for white LEDs operating from a supply voltage of less than 0.9V. Only one external inductor is needed for operation of a white LED. PR4401 is recommended for mean LED currents of up to 20mA. This makes the PR4401 ideal for use in low-cost or small-sized applications such as LED flashlights or LCD backlighting for portable devices.
Applications:
Small-sized LED torches
LCD backlighting
LED indicator lights
Features:
minimum startup voltage 0.9V
200mA peak output current
only one external component required
battery deep discharge protection
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