Description
The YB1509 is a high-power boost converter. An adjustable current limit, wide range of input voltage, and up to 40V of switch voltage are designed to drive white LEDs back-lighting for large LCD panel. It can drive up to 10 LEDs in series or 18 LEDs in parallel/series configuration.

FEATUREs
 2V to 16V Input Voltage
 40V Maximum Output Voltage
 Drive up to 18 White LEDs
 Adjustable Inductor Current
 1µs Constant Off-time PFM Control
 1KHz to 100KHz PWM Dimming Control

APPLICATIONs
 PDA, Palmtops and Smart Phones
 LCD Monitor
 LCD TV
 Portable DVD player
 White LED backlighting
 GPS navigation system
 Handheld Game