DD211 pump equivalent, charge pump.
Low supply voltage, 2.0V~3.3V Only one external component, a capacitor needed Built-in resistor to limit the output current Low quiescent supply current It is easy to pac.
High forward-voltage LED Indicators’ drivers High forward-voltage LED Back lighters for low-voltage wireless handsets
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DD211 is designed specifically for driving a high forward-voltage LED as a light source with low supply voltage. Like a charge pump, DD211 doubles the supply voltage, but only requires one external component, a capacitor. The built-in oscillator gene.
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