MIC3287 Datasheet | Micrel Semiconductor

.. MIC3287 Micrel, Inc. 1.2MHz PWM White LED Driver with OVP in Thin SOT-23 and 2mm x 2mm MFL™ General Description The MIC3287 is a 1.2MHz pulse width modulated (PWM) step-up switching regulator that is optimized for constant current white LED driving applications. With a maximum output voltage of 24V and a switch current of over 350mA, the MIC3287 drives a string of up to 4 white LEDs in series, ensuring uniform brightness and eliminating several ballast resistors. The MIC3287 implements a constant frequency 1.2MHz PWM current-mode control scheme. The high frequency PWM operation saves board space by reducing external ponent sizes. The added benefit of the...