DCRIPTIO
N
The  APA7136 IS step-up DC/DC converters
digned to drive up to six LEDs in seri from a Li-Ion cell.
Seri connection of the LEDs provid identical LED
currents and eliminat the need for ballast ristors.
The devic integrate the Schottky diode required exter-
nally on competing devic. Additional featur include
output voltage limiting when LEDs are disconnected, one-
pin shutdown and dimming control. The APA7136   has
internal soft-start.
The  APA7136   switch at 1.2MHz, allowing the use of tiny
external components. Constant frequency  switching
  rults in low input noise and a all output capacitor.
 Just 0.22µF is required  for 4-, 6- or 8-LED applications.
The APA7136  is available in low profile(1mm)6-lead

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