i am using lm3424 led driver for solar street light application , in buck boost topology i have used 33uH inductor its making more noise when the light is not connected to LED driver and some times its not taking full load means LED light is not turn on completely , and its drawing more current from the battery .
Vin=16.8 V
Vout= 40V
frequency=300kHz
and Led current =1.2A
LED fixture voltage =36V
please suggest any changes in LED driver for reducing inductor noise and input drawing current.please check the attached schematicevol_hw_sch_dev_ssl_v0_3_zig.pdf