Datasheet

EVAL-ADP1720
Rev. 0 | Page 4 of 8
EVALUATION BOARD CONFIGURATIONS
The ADP1720 evaluation boards come supplied with different
components depending on which version is ordered.
Components common to all versions are C1, C2, and J1.
ADP1720 ADJUSTABLE OUTPUT
Evaluation boards that come supplied with ADP1720 adjustable
output voltage option devices have the additional R1 and R2
resistors included.
Figure 3 shows the schematic of this
evaluation board configuration.
1
2
3
4
8
7
6
5
J1
GND
GND
GND
GND
ADJ
IN
OUT
EN
R1
R2
C1
C2
V
IN
V
OUT
ADP1720
ADJUSTABLE
U1
06768-003
Figure 3. ADP1720 Adjustable Output
The output voltage is set based on the following equation:
V
OUT
= 1.225 V (1 + R1/R2)
For example, if R1 = 15 kΩ and R2 = 10 kΩ, then V
OUT
is 3.06 V.
ADP1720 FIXED OUTPUT
Fixed output voltage evaluation boards are available in 3.3 V
and 5 V options. For fixed output devices, J2 is inserted to
connect the GND/ADJ pin to ground.
Figure 4 shows the
schematic of this evaluation board configuration.
1
2
3
4
8
7
6
5
J1
GND
GND
GND
GND
GND
IN
OUT
EN
C1
C2
V
IN
V
OUT
ADP1720
J2
U1
06768-004
Figure 4. ADP1720 Fixed Output