Datasheet
Evaluation Board User Guide UG-204
Rev. A | Page 7 of 12
EVALUATION BOARD SCHEMATICS AND ARTWORK
VOUT1
FB1
FB2
TRK 1
VOUT2
COMP1
VINVIN
SYNC
SYNC
VDL
FREQ
EN2
FB1
VOUT1
VOUT2
TRK 2
DL2
DL1
VDL
SW1
SS1
FB2
FB1
COMP1
SS1
EN1
DH2
DH1
SW2
VIN
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VIN
VIN
VIN
VOUT1 VOUT2
V
in = 10V to 20V
VDL
VOUT2 = 1.8V
VOUT1 = 3.3V
TURRET
TURRET
TURRET
TURRET
TURRET
22pF
22pF
open
open
open
open
open
22uF
22uF
22uF
22uF
+
COV5
330uF
+
COV5
330uF
TP5TP5
1
RC2
23.2k
RC2
23.2k
+
CIN13
open
+
CIN13
open
+
COV3
open
+
COV3
open
J4
2 Way Link
J4
2 Way Link
1 3
2
J3
2 Way Link
J3
2 Way Link
1 3
2
T2T2
1
2
3
4
R101
open
R101
open
CC21
560pF
CC21
560pF
TP15TP15
1
L1
1.2uH
L1
1.2uH
RR2
187k
RR2
187k
T11T11
1
R100
open
R100
open
TP1TP1
1
TP8TP8
1
J8
CON12
J8
CON12
1
2
3
4
5
6
7
8
9
10
11
12
RGCS2
22.6k
RGCS2
22.6k
J6J6
TP7TP7
1
REN11REN11
TP3TP3
1
CSS1
100nf
CSS1
100nf
QH1
BSC080N03
QH1
BSC080N03
S1
S2
S3
G
D4
D3
D2
D1
RT13RT13
TP9TP9
1
Cin12
10uF
25V
Cin12
10uF
25V
RT24
open
RT24
open
CSNB2CSNB2
U1
ADP1850-LFCSP
U1
ADP1850-LFCSP
EN1
1
SYNC
2
VIN
3
VCCO
4
VDL
5
AGND
6
TRK2
9
FB2
10
COMP2
11
RAMP2
12
SS2
13
PGOO D2
14
ILIM2
15
BST2
16
SW2
17
DH2
18
PGND2
19
DL2
20
DL1
21
PGND1
22
DH1
23
SW1
24
FREQ
7
EN2
8
TRK1
32
FB1
31
COMP1
30
RAMP1
29
SS1
28
PGOOD1
27
ILIM1
26
BST1
25
QL1QL1
S1
S2
S3
G
D4
D3
D2
D1
R103
open
R103
open
J5J5
CSNB1CSNB1
QL2
BSC030N03
QL2
BSC030N03
S1
S2
S3
G
D4
D3
D2
D1
RGCS1
22.6k
RGCS1
22.6k
TP16TP16
1
REN21REN21
R1
0
R1
0
+
COV6
330uF
+
COV6
330uF
TP4TP4
1
+
COV23
+
COV23
TP13TP13
1
RPG2RPG2
RF22
10k
RF22
10k
+
COV8
open
+
COV8
open
QL3
BSC030N03
QL3
BSC030N03
S1
S2
S3
G
D4
D3
D2
D1
TP18TP18
1
+
COV22
+
COV22
RT23RT23
QL4QL4
S1
S2
S3
G
D4
D3
D2
D1
RSNB2RSNB2
RF21
20k
RF21
20k
J9
CON12
J9
CON12
1
2
3
4
5
6
7
8
9
10
11
12
+
COV7
open
+
COV7
open
CDR
1.0uF
CDR
1.0uF
+
CIN20
150uF
+
CIN20
150uF
RSNB1RSNB1
RF11
45.3k
RF11
45.3k
RR1
187k
RR1
187k
REN22REN22
RT12RT12
TP17TP17
1
+
CIN10
open
+
CIN10
open
QH3
BSC080N03
QH3
BSC080N03
S1
S2
S3
G
D4
D3
D2
D1
T9T9
1
RILIM21
2.1K
RILIM21
2.1K
CLIMCLIM
CVIN
100nf
CVIN
100nf
QH4QH4
S1
S2
S3
G
D4
D3
D2
D1
RDL1
0
RDL1
0
T5T5
1
2
3
4
+
COV1
330uF
+
COV1
330uF
+
COV2
330uF
+
COV2
330uF
Cin11
10uF/25V
Cin11
10uF/25V
RT22RT22
CBST1
100nf
CBST1
100nf
+
COV4
open
+
COV4
open
L2
1.2uH
L2
1.2uH
T6T6
1
2
3
4
J1
2 Way Link
J1
2 Way Link
1 3
2
T3T3
1
2
3
4
RILIM11
2.1K
RILIM11
2.1K
CV5
1.0uF
CV5
1.0uF
TP12TP12
1
TP10TP10
1
RB0
2
RB0
2
QH2QH2
S1
S2
S3
G
D4
D3
D2
D1
R2
0
R2
0
RT21
0
RT21
0
TP14TP14
1
+
COV12
+
COV12
TP11TP11
1
CIN22
10uF/25V
CIN22
10uF/25V
T1
2
T1
2
1
CLIM2CLIM2
RDH2
0
RDH2
0
CC12
47pF
CC12
47pF
RF12
10K
RF12
10K
RV5
open
RV5
open
J7J7
CC11
330pF
CC11
330pF
TP2TP2
1
RDL2
0
RDL2
0
REN12REN12
CIN21
10uF
25V
CIN21
10uF
25V
T8T8
1
TP6TP6
1
RFREQ
open
RFREQ
open
+
COV13
+
COV13
J2
2 Way Link
J2
2 Way Link
1 3
2
RC1
42.2k
RC1
42.2k
T10T10
1
T4T4
1
2
3
4
CSS2
100nF
CSS2
100nF
R102
open
R102
open
CC22
47pF
CC22
47pF
RDH1
0
RDH1
0
RVCC0
2
RVCC0
2
RPG1
open
RPG1
open
+
CIN23
open
+
CIN23
open
CBST2
100nf
CBST2
100nf
RT11
0
RT11
0
RT14
open
RT14
open
T1T1
1
2
3
4
09455-008
Figure 8. Evaluation Board Schematic