Hi,
I am using LT3956 as a backlight driver in boost configuration.
I need to generate 21V at the output with max of 60mA ( Vin = 5.2V)
The max voltage i am getting at the output is 6.4V with a DC voltage of 3.3V at pin 33 ( PWM in ).
I am not sure what is causing output to be low.
Request your support.

Regards,
Anurag Singh