1.2MHz,High Efficiency Boost White LED Driver
SL6608替代RT9293BGJ6


GENERAL DESCRIPTION
  The SL6608 is a step-up converter designed for
driving up to 7 series white LEDs from a single cell
Lithium Ion battery. The SL6608 uses current
mode, fixed frequency architecture to regulate an
LED current, which is measured through an
external current sense resistor. Its low 200mV
feedback voltage reduces power loss and
improves efficiency.
  The SL6608 includes under-voltage lockout,
current limiting and thermal overload protection
preventing damage in the event of an output
overload.
  Optimized operation frequency can meet the
requirement of small LC filters value and low
operation current with high efficiency. Internal soft
start function can reduce the inrush current. Tiny
package type provide the best solution for PCB
space saving and total BOM cost.

FEATURES
   High Efficiency: Up to 90%
   1.2MHz Constant Frequency Operation
   Integrated internal Power MOSFET
   Drives up to 7 Series WLEDs
   Low 200mV Feedback Voltage
   Soft-start/Dimming with wide Frequency
Range
   UVLO, Thermal Shutdown
   Internal Current limit
   Over Voltage Protection
   Small LC Filter
   Minimize the External Component
   <1μA Shutdown Current
   SOT23-6 Package

APPLICATIONS
   Camera Flash White LED
   Mobile Phone, Smart Phone LED Backlight
   PDA LED Backlight
   Digital Still Cameras
   Camcorder


TYPICAL APPLICATION