The page states that the backlight driver should use 243mA at 3.7V. Mine uses about 130mA initially then jumps to 310mA after a minute and the inductor gets hot enough to burn my finger. When started at room temperature the driver uses 130mA at 6V, but if I run it at 3.7v until it gets hot and then connect it to 6v it will use 440mA. Obviously there is some loss of efficiency when the inductor gets hot.
Is this normal or did I get a defective unit?