ADP1864

Rev. 0 | Page 12 of 16

FEEDBACK RESISTORS

The feedback resistor ratio sets the output voltage of the system.

ADP1864

FB

3

R1

VOUT

R2

Figure 15. Two Feedback Resistors Used to Set Output Voltage

R2

R1

R2

V

V

OUT

+

×

=

8

.

0

(

)

8

.

0

8

.

0

2

−

×

=

OUT

V

R

R1

Choose 80.6 kΩ for R2. Using higher values for R2 results in

reduced output voltage accuracy while lower values cause

increased voltage divider current, increasing quiescent current

consumption.