Datasheet

UG-310 Evaluation Board User Guide
Rev. 0 | Page 6 of 12
EVALUATION BOARD SCHEMATIC AND ARTWORK
ADP2323 SCHEMATIC
J12 GND_SNS
1
J18 VOUT2_SNS
1
J14 GND_SNS
1
R2 0R
R1 NC
J28 GND
1
J16
POK2
1
J11 POK1
1
C11 NC C14 NC
J31 EN1
1 2 3
R8 NC
R16 0R
J32 EN2
1 2 3
R10 0R
C20
1000pF
R19
75k
C21
10nF
C1 10uF
C6
10nF
C4
1000pF
R5
82k
U1
ADP2323
POK1
1
SCFG
2
SYNC
3
GND
4
INTVCC
5
RT
6
MOD E
7
POK2
8
FB2
9
COMP2
10
SS2
11
TRK2
12
EN2
13
PVIN3
14
PVIN4
15
SW3
16
SW4
17
BST2
18
DL2
19
VDRV
20
PGND1
21
DL1
22
BST1
23
SW1
24
SW2
25
PVIN2
26
PVIN1
27
EN1
28
TRK1
29
SS1
30
COMP1
31
FB1
32
PAD
33
L2 4.7uH
1 2
L1 2.2uH
1 2
C7 0.1uF C18 0.1uF
R14 NC R9 NC
C8
100uF/6.3V
C15
47uF/6.3V
C12 1uF
J21 SW2
1
C13 1uF
C3 10uF/25V C22 10uF/25V
C9
100uF/6.3V
R4 10k
R7 10k
C10
100uF/6.3V
R13 120k
C16
47uF/6.3V
J2 PVIN1_SNS
1
C17
NC
C2 10uF
Q1 FDS8880
3 6
5
7
8
2
4
1
R15 0R
Q2 FDS8880
36
5
7
8
2
4
1
J6 SW1
1
R18 10k
R17 2.21k
Vin1=Vin2=12V, Vout1=1.2V, Vout2=3.3V, Fsw=500kHz, Iout1=Iout2=3A
R11 100k
J25 GND
1
J13
SYNC
1
C19
NC
C5
NC
C23 10uF
J24 PVIN2_SNS
1C24
10uF
J30 GND_SNS
1
J23 PVIN2
1 2
J27 GND
1 2
R12 100k
J5 GND_SNS
1
J8 VOUT1
1 2
J10 GND
1 2
J17 GND
1 2
J20 VOUT2
1 2
J1 PVIN1
1 2
J3 GND
1 2
J19
MOD E
1 2 3
R6 NC
J7
SCFG
1 2 3
R3 NC
J4
TRK 1 1
2 3
J15
INTVCC
1
J22
TRK 2 1
2 3
J9 VOUT1_SNS
1
R20 NC
J29 GND
1
J26 GND
1
10113-019
Figure 3. Evaluation Board Schematic for ADP2323