MIC2287C
Micrel
MIC2287C
1.
2MHz PWM White LED Driver with OVP in 2mm × 2mm MLF™ and Thin SOT-23
General Description
The MIC2287C is a 1.
2MHz pulse width modulated (PWM), boost-switching
regulator that is optimized for constant-current, white LED driver applications.
With a maximum output voltage of 37V and a switch current of over 500mA, the MIC2287C easily drives a string of up to 6 white LEDs in series, ensuring uniform brightness and eliminating several ballast resistors.
The MIC2287C implements a constant frequency, 1.
2MHz PWM control scheme.
The high frequency PWM operation saves board space by reducing external component sizes.
The added benefit of the constant frequency PWM scheme as...