2.5V to 5.5V Input Voltage Range Built In Power MOSFET Drive Up to 15V @400mA at 5V Vin Less than 1µA Shutdown Current Up to 94% efficiency Over Voltage Protection@18V UV.

for cellular phone backlighting or other hand held equipment. The wide input voltage range from 2.5V to 5.5V is idea for.

The YB1521 is a step-up DC-DC converter which operating as current source to drive up 45 white LEDs (3S15P) in parallel / series configuration from a 5V system rail. Series connecting of LEDs provides identical LED currents resulting in uniform brigh.

YB1520

YB1522

YB1506

YB1508

YB1509

YB1510

YB1517

YB1518

YB1519

YB1109F

YB1200R

YB1210

YB1210R

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