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Preliminary T6313A
Low Noise, High Efficiency WhiteLED Charge Pump
FEATURES
• 4 Current Source Outputs • 20mA Full Scale Current for each LED com • Power efficency up to 93% • 32 levels for brightness • 2 wires interface • Low Noise Constant Frequency Operation • High Accuracy Brightness Matching • White LED Backlighting • 0.
5% LED current matching • Automatic Soft-Start • No External Inductors, Schottky, or Zener Diode and Resistor Required • 500KHz Switching Frequency (1MHz optional) • 2.
7V to 5.
5V supply
voltage • Shutdown current is less 1uA • Temperature Range -40 to 85°C • 16-Pin QFN
GRNERAL DESCRIPTION
The T6313A is a charge pump DC/DC converter driving a ...