MIC2289C - White LED Driver Internal Schottky Diode/OVP

Product Overview

MICREL

Part number	MIC2289C
Manufacturer	MICREL
File Size	242.64 KB
Description	White LED Driver Internal Schottky Diode/OVP
Datasheet	MIC2289C Datasheet
Additional preview pages of the MIC2289C datasheet.

The MIC2289C is a PWM (pulse width modulated), boostswitching regulator that is optimized for constant-current white LED driver applications.

an internal Schottky diode and three levels of output overvoltage protection providing a small size and efficient DC/DC solution that requires only four external components. To optimize efficiency, the feedback voltage is set to only 95mV. This reduces power dissipation in the current set resistor and allows the lowest total output voltage, hence minimal current draw from the battery. The MIC2289C implements a constant frequency 1.2MHz PWM control scheme. The high frequency, PWM operation saves.

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Published: Aug 1, 2010 |