MIC2287C-24YML Datasheet PDF - Micrel

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.

●Features

●•  2.5V to 10V input voltage

●•  Output voltage up to 34V

●•  Over 500mA switch current

●•  1.2 MHz PWM operation

●•  95mV feedback voltage

●•  Output Overvoltage Protection (OVP)

●•  Options for 15V, 24V, and 34V OVP

●•  Over-temperature protection

●•  UVLO

●•  Low profile Thin SOT-23-5 package option

●•  8-lead 2mm × 2mm MLF™ package option

●•  –40°C to +105°C junction temperature range

●•  For higher performance specifications see the MIC2287

●Applications

●•  White LED driver for backlighting:

●  - Cell phones

● - PDAs

●  - GPS systems

●  - Digital cameras

●  - MP3 players

●  - IP phones

●•  LED flashlights