Operating Voltage：2.7V to 5.5V
  High Operating Frequency：1MH
  High Output Voltage：28V
  Shutdown Current：<1µA
  Over-Voltage Protection
  Digital Dimming Control
  Built-in Cycle-by-Cycle Current-L
  Soft-Start Function
  0.2V Low Reference Voltage
  SOT-23-6 & TDFN2X2-8 Package