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YB1518
Step-up DC-DC Converter White LED Driver Features
Built-in internal switch 2.
7V to 16V input range 1uA shutdown current High efficiency Internal Soft Start Drives up to 9 white LEDs(VIN at 3.
4V) Over
voltage protection 36V Small 5-Lead SOT-23 package 100mV Low Reference
Voltage
Description
The YB1518 is a step-up DC-DC converter; operates as current source to drive up to 6 white LEDs(VIN at 3.
0V) or 8 LEDs(VIN at 3.
4V) or 9 LEDs(VIN at 3.
4V) in series.
Series connecting of the LEDs provides identical LED currents resulting in uniform brightness and eliminating the need for ballast resistors.
The light intensity of these LEDs is proportional to ...