1.2MHz PWM White LED Driver With OVP In Thin SOT-23

The MIC2289C 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 MIC2289C easily drives a string of up to 6 white LEDs in series, ensuring uniform brightness and eliminating several ballast resistors. The MIC2289C 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 opposed to variable frequency topologies is much lower noise and input ripple injected back to the battery source. To optimize efficiency, the feedback voltage is set to only 95mV. This reduces the power dissipation in the current set resistor and allows the lowest total output voltage, hence minimal current draw from the battery. By Micrel Semiconductor
MIC2289C 's PackagesMIC2289C 's pdf datasheet
MIC2289C-34BD6 SOT-23
MIC2289C-34YD6 SOT-23




MIC2289C Pinout, Pinouts
MIC2289C pinout,Pin out
This is one package pinout of MIC2289C,If you need more pinouts please download MIC2289C's pdf datasheet.

MIC2289C Application circuits
MIC2289C circuits
This is one application circuit of MIC2289C,If you need more circuits,please download MIC2289C's pdf datasheet.


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