EVAL-ADP7156 Datasheet, PDF (3/8 Pages) Analog Devices – Evaluating the ADP7156 Ultralow Noise

EVAL-ADP7156 User Guide
UG-809
EVALUATION BOARD HARDWARE
EVALUATION BOARD CONFIGURATIONS
The ADP7156CP-3.3EVALZ evaluation board comes supplied
with components as shown in Table 1. The schematics of the
evaluation board configuration are shown in Figure 2. The
ADP7156 is available in 16 fixed output voltage options,
ranging from 1.2 V to 3.3 V.
Table 1. ADP7156CP-3.3EVALZ
Component Description
U1
ADP7156ACPZ-3.3-R7
C1
Input bypass capacitor (CIN)
C2
VREG bypass capacitor (CREG)
C3
VREF bypass capacitor (CREF)
C4
Bypass capacitor (CBYP)
C5
Output capacitor (COUT)
C6, C7
Optional output capacitors (not installed in the
evaluation board)
R1
Reference short resistor
R2
Reference resistor for adjustable output versions
only (not installed in the evaluation board for
fixed output versions)
JP1
Jumper (connects the EN pin to the VIN pin for
automatic startup)
TP1
P5
1
U1
TP2
ADP7156
P6
1
2
3
4
5
6
7
8
C1
10µF
AGND
JP1
1
2
C4
TP3
1
1
9
10
VIN
VIN
VOUT
VOUT
1
2
5 _{EN VOUT_SENSE} 3
4 _BYP
C5
10µF
C6
DNI¹
C7
DNI¹
1
2
3
4
5
6
1µF
AGND
8 _VREG
7
6
REF
REF_SENSE
AGND
7
8
C2
1µF
R1
EP
PAD
AGND
C3
0Ω
1µF
AGND
R2
DNI¹
AGND
AGND
P1
1
2
3
4
P2
1
2
3
4
P3
1
2
3
4
P4
1
2
3
4
AGND
1_{DNI = DO NOT INSTALL. DO NOT INSTALL THIS COMPONENT IN THE EVALUATION BOARD.}
Figure 2. ADP7156CP-3.3EVALZ Evaluation Board Schematic
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