Vout = Vref * (R2/R3+1)
for 5V = 0.6V * (100K / ? + 1 )
100K / R3 = 5V/0.6V - 1 = 7.3333 100K / R3 = 5.2V/0.6V - 1 = 7.6666
R3 = 13.633K or below 13.3K for 5.2V
