LP3382S Datasheet | Lowpowersemi

Preliminary Datasheet High Performance, Constant Current Switching Regulator For 8PCS White LED In Series General Description The LP3382S is a 1.2MHz PWM boost switching regulator designed for constant- current white LED driver applications. The LP3382S can drive a string of up to 8 white LEDs in series, ensuring uniform brightness and eliminating several ballast resistors. The LP3382S implements a constant frequency 1.2MHz PWM control scheme. The high frequency PWM operation also saves board space by reducing external ponent sizes. To improve efficiency, the feedback voltage is set to 250 mV, which reduces the power dissipation in the current setting resistor. Highly...