While designing dc dc converter for above mentioned part number , i followed the same step what u given in datasheet to calculate the value of inductor , but it giving different value as calculated and webench circuit, considered all parameters. input range 20 to 30V , output 3.3V 0.5A , switching frequency 1.2 Mhz. in webench showing 3.3 uH. when i calculate using formula it coming more than 9 uH.
Please resolve the issue.
