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EVAL-ADP1712/ADP1713/ADP1714
EVALUATION BOARD CONFIGURATIONS
The ADP1712/ADP1713/ADP1714 evaluation boards come
supplied with different components depending on which
version is ordered. Components common to all versions are
C1, C2, and J1.
ADP1712 FIXED OUTPUT WITH SOFT START
ADP1713 FIXED OUTPUT WITH BYPASS
Evaluation boards that come supplied with ADP1713 fixed
output voltage option devices has the additional C3 bypass
capacitor to reduce the output noise and improve PSRR. Figure 5
shows the schematic of this evaluation board configuration.
Evaluation boards that come supplied with the ADP1712 fixed
output voltage option devices has the additional C3 soft start
V IN
1
ADP1713
IN OUT
5
V OUT
capacitor. This capacitor controls the rise time when the output
voltage starts up. Figure 3 shows the schematic of this evalua-
tion board configuration.
ADP1712
V IN
V OUT
C1
J1
2
3
GND
EN
U1
BYP
4
C3
C2
1
IN
OUT
5
Figure 5. ADP1713 Fixed Output with Bypass
C1
J1
2
3
GND
EN
SS
4
C2
ADP1714 FIXED OUTPUT WITH TRACKING
Evaluation boards that come supplied with ADP1714 fixed
C3
U1
Figure 3. ADP1712 Fixed Output with Soft Start
ADP1712 ADJUSTABLE OUTPUT
Evaluation boards that come supplied with ADP1712 adjustable
output voltage option devices have the additional R1 and R2
resistors to set the output voltage. Figure 4 shows the schematic
output voltage option devices with tracking do not have C3,
R1, or R2 populated. The user can instead connect an external
voltage to the SS/ADJ/BYP/TRK pad of the evaluation board
to use the track function. Figure 6 shows the schematic of this
evaluation board configuration.
ADP1714
V IN V OUT
1 IN OUT 5
of this evaluation board configuration.
ADP1712
ADJUSTABLE
V IN
1 IN OUT
5
V OUT
C2
C1
J1
2
3
GND
EN
U1
TRK
4
C2
V TRK
C1
J1
2
GND
Figure 6. ADP1714 Fixed Output with Tracking
R1
3
EN
ADJ
4
R2
U1
Figure 4. ADP1712 Adjustable Output
The output voltage is set based on the following equation:
V OUT = 0 . 8 V ( 1 +
R1
R 2
)
For example, if R1 = 10 kΩ and R2 = 4.99 kΩ, then V OUT
is 2.403 V.
Rev. 0 | Page 4 of 8
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