UM1470

Measurements

Doc ID 022241 Rev 1

13/19

4.2

Standby

The standby behavior of the board is displayed in Figure 7. This value is for any input

voltage below 30 mW. The measured value could be partly reduced by using a higher value

of resistors R1 and R3. The power loss over these resistors is about 4.5 mW. By using

a higher value voltage divider (5 - 10 times) the standby losses drop by about several mW,

but this action increases load regulation.

Figure 7.

Standby depending on the input voltage