Drives LEDs with a regulated output voltage or current (up to 120mA) from an unregulated input supply (2.7V to 5.3V). These are complete DC-DC converters requiring only four small ceramic capacitors and no inductors. 200mV Current-Sense Threshold Reduces Power Loss.
MAX1910 White LED Charge Pumps - Maxim IC
1.5x/2x High-Efficiency White LED Charge Pumps
Some Features
- High-Efficiency 1.5x/2x Charge Pumps
- Low Input Ripple with 750kHz Operation
- Up to 120mA Output Current
- 1µA Shutdown Current
Read More Here - White LED Drive Maxim at EEM
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