General Description
The TS19371 is a step-up DC/DC converter specifically designed to drive white LEDs with a constant current. The device can  drive up to  126 LEDs (9S14P) from a 12V  supply. The output capacitor can  be as small as  4.7µF, saving  space  versus  alternative  solutions.  A  low  95mV  feedback  voltage  minimizes  power  loss  for  better efficiency. Additional feature include over output voltage limiting (SOT-26 package) when LEDs are disconnected.

FEATUREs
● Inherently Matched LED Current
● High Efficiency: 89% Typical
● Drives Up to 9 LEDs Series @ Vin 9~15V
● Drives Up to 126 LEDs (9S14P) @ Vin 12~15V
● Drives Up to 6 (1W) LEDs Series @ Vin 12V
● Over Output Voltage Protection 30V (SOT-26)
● Fast 1.2MHz Switching Frequency
● Requires Only 4.7µF Output Capacitor
● PWM dimming control 1KHz to 10KHz
● Analog dimming control

APPLICATION
● Cellular Phones
● Portable Electronics Devices PDA, GPS
● LCD Display Module
● White LED Backlighting
● MR-16 lighting