6
AN1460.1
July 13, 2009
ISL62883EVAL2Z Schematic
FIGURE 2. ISL62883EVAL2Z SCHEMATICS, PAGE 1 OF 5
100
FROM POWER STAGE
ROUTE LGATE1/B TRACE IN PARALLEL WITH THE VSSP TRACE
SAME RULE APPLIES TO THE OTHER PHASE
ROUTE UGATE1 TRACE IN PARALLEL WITH THE PHASE1 TRACE
GOING TO THE SOURCE OF Q3 AND Q4.
PGOOD
2.
37K
CO
MP
8.66
K
100
0P
F
150PF
324K
39PF
DNP
TO POWER STAGE
IS
EN3/
FB2
ISE
N1
"0"
DPRSLPVR
"1"
ON
DN
P
NT
C
DPR
SLPVR
0
.22U
F
8
.25K
VSU
M+
330PF
--
--
->
10K
11K
NT
C
0
.1UF
PSI#
VID0
"1"
VID
2
VID
3
VID6
VID
5
VID
4
"0"
VID4
VID5
VID3
VID2
VID1
VID
0
PWM3
5V
+5V
NOTE:
VR
_ON
GND
ISEN2
GND
GND
ISEN1
3.3V
PGND
GOING TO THE SOURCE OF Q1 AND Q2.
TO DRIVER
VID
1
VID
6
OFF
330P
F
82
.5
VR-T
T#
+5V
FROM POWER STAGE
-
--->
+5V
0.22
UF
<
VSE
N>
2.
61
K
0
0.22
UF
0.22
UF
0.47
UF
DN
P
FB
2.37K
536
DN
P
D
NP
VW
1.
91K
0.03
9UF
IS
EN2
0
PS
I#
0
RTN
CLK_EN#
ISEN3/FB2
390PF
PLACE NEAR Q2
/FB2
VS
EN
1000PF
0
.01UF
820PF
604
V
SUM-
PLACE NEAR L1
TP
1
8
C81
C1
5
R109
TP
14
TP1
5
R1
3
R1
2
TP
8
R11
49
9
R1
5
PHASE2
UGATE2
10
R18
R22
2
ISL62883HRZ
10K
VSSSENSE
22
TP28
14
1.91K
TLV431ASNT1
TP
4
R6
R11
4
TP36
TP35
C8
3
R1
10
C18
2
1
J16
C1
6
TP37
C2
R1
0
8
R14
R24
R2
5
R2
7
R2
9
R32
R3
3
R3
4
TP
12
2
1
J3
R8
R5
4
3
2
1
S1
6
5
4
3
2
1
J1
C2
3
6
5
4
3
2
1
J2
6
5
4
3
2
1
J4
2
1
R20
41
9
8
7
6
5
40
4
39
38
37
36
35
34
33
32
31
30
3
29
28
27
26
25
24
23
21
20
19
18
17
16
15
13
12
11
10
1
U6
R2
43
5
U1
R1
C1
TP1
R5
0
C2
1
C10
C9
C7
T
P11
TP
10
R4
R23
R48
R47
R2
6
R30
R3
5
R21
TP
6
C13
C12
1
3
2
S3
C1
9
R8
0
TP
2
0
TP2
7
TP2
6
TP2
5
TP2
4
TP2
3
TP2
2
TP
21
C2
2
R40
TP13
TP
1
9
C1
7
R37
C14
R17
TP5
TP9
TP16
TP7
TP
17
R52
TP30
TP29
R9
C8
R16
R4
2
C8
2
C20
C5
R38
R41
R4
4
C4
C6
C3
C11
R7
R10
2
1
3
Q1
R1
9
R3
1
R2
8
4
2
3
1
D1
R4
5
R4
3
R3
9
R4
9
R5
1
R3
6
R4
6
9
8
7
6
5
4
3
2
14
13
12
11
10
1
U2
ISEN2
ISEN3
49
9
PSI#
1
EAD102L
49
9
10K
10K
DPRSLPVR
+3.3V
0.2
2U
F
2N7002
OP
E
N
VCORE
VCCSENSE
0
0
10
1
0
00
PF
OPEN
49.9
+3.3V
0.
01U
F
VCCP1.2V
0
DN
P
BOOT1
UGATE1
100
ISEN1
+5V
147K
DNP
LGATE1/A
PHASE1
10
K
LGATE1B
100
0
MST7_SPST
0
0
0
VID
5
VID
6
IMON
VSSSENSE
0
0
0
PWM3
0
1UF
1UF
10
K
10
K
10
K
1UF
VIN
10
K
+5V
BOOT2
10
K
10
K
+5V
0
LGATE2
+5V
+3.3V
0
VID
4
VID
0
VCCP1.2V
VID
1
VID
2
VID
3
VSUM+
VSUM-
1UF
+5V
IN
OUT
IN
OUT
IN
OUT
IN
IN
OUT
IN
OUT
OUT
IN
IN
IN
IN
IN
IN
OUT
IN
IN
IN
OUT
IN
IN
IN
OUT
OUT
OUT
1
2
3
4
5
6
7
13
12
11
10
9
8
14
1
2
1
2
6
4
2
1
5
3
6
4
2
1
5
3
6
4
2
1
5
3
EP
C
LK_E
N#
PGOOD
PSI#
RBIAS
VR_TT#
NTC
COMP
VW
FB
ISEN3
VI
D3
VI
D4
VI
D5
VI
D6
V
R
_O
N
DPRS
LPVR
UGATE2
BOOT2
PHASE2
VSSP2
LGATE2
VCCP
PWM3
LGATE1
UG
A
T
E
1
BO
OT1
IM
ON
VD
D
VI
N
IS
UM
+
IS
UM
-
RT
N
VS
E
N
I
SEN1
PHASE1
VSSP1
VI
D0
VI
D
1
VI
D2
ISEN2
-
REF
V
1.24
+
RED
GRN
P1
P2
Application Note 1460
