6
AN1553.0
Ma
rch 24, 2010
FIGURE 3. ISL62881CGPUEVAL2Z SCHEMATIC, 2 OF 5
ISL62881CGPUEVAL2Z Schematics
(Continued)
DNP
DNP
DNP
DNP
DNP
10UF
10UF
1.82K
-->
PADS FOR BIG INDUCTOR
0.1UF
-->
0.1UF
CLOSE TO THE PROBE SOCKET
------
->
22UF
22UF
0
DNP
IRF7821
PHASE1
0
DNP
__
----->
0
__
OPENINGS WITH
10MIL CLEARANCE
-->
IRF7832
IRF7821
IRF7832
PGND
VIN
----------
----->
DNP
7MOHM
7MOHM
PADS FOR SMALL INDUCTOR
-->
0.56UH
1.3MOHM
220UF
220UF
LGATE
CENTERED IN THE CPU SOCKET
TP33
TP31
TP32
0
0.22UF
Q3
Q9
4
R59
L1
R87
C25
56UF
10UF
2
R68
R77
VSUM-
2
VCORE
C45
C58
J14
1
4
3
J10
1
C52
1
2
C57
2
1
C40
C41
C54
C55
C56
C59
C60
C61
1
J12
R63
0
R62
5
VSUM+
R99
J7
LGATE
UGATE
PHASE
BOOT
J6
J5
VIN
R56
1
2
C30
3 2 1
4
5
C27
C33
10UF
3
1
5
Q2
4
2 1
3
5
3
1
4
2
Q8
1
4
3
2
R93
R96
IN
OUT
OUT
OUT
IN
IN
IN
OUT
Application Note 1553
