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PRODUCT SPECIFICATION
RC5050
7
Test Circuit
Figure 1. 15A Application Circuit for Pentium II Processor
Figure 2. Output Driver Test Circuit
Table 2. Recommended Bulk Capacitors for CPU-based Applications
Application
Output
Current
CIN
COUT
COUT Maximum
ESR
RSENSE
Motorola PowerPC
603/604 Motherboard
7A
2 x 1500
µF, 6V
Sanyo
6MV1500CX
2 x 1500
µF, 6V
Sanyo
6MV1500SX
22m
Ω
10.5m
Ω
Intel Pentium II Klamath
Motherboard
14.2
3 x 1200
µF, 10V
Sayno
10MV1200EG
5 x 1500
µF, 6.3V
Sanyo
6MV1500GX
9.0m
Ω
5.5m
Ω
Intel Pentium II
Motherboard (All versions
including next generation)
15A
3 x 1200
µF, 10V
Sayno
10MV1200EG
7 x 1500
µF, 6.3V
Sanyo
6MV1500GX
6.0m
Ω
5.0m
Ω
VO
GND
VID3
VID2
VID1
VID0
8
7
6
5
4
3
2
1
9
10
11
12
13
14
15
16
17
18
19
20
+5V
PWRGD
RC5050
VCC
65-5050-12
ENABLE
C10
0.1
µF
0.1
µF
C11
10K
Ω
CEXT
C7
0.1
µF
C6
1
µF
DS1
MBR2015CTL
CIN
C5
0.1
µF
D1
1N4735A
C12
1
µF
L1
1.3
µH
M1
IRL3103
M2
IRL3103
C8
0.1
µF
C9
0.1
µF
RSENSE*
COUT*
L2
2.5
µH
VREF
C4
0.1
µF
+12V
VID4
47
Ω
R5
R6
100pF
*Refer to Table 2 for value of
RSENSE, COUT, and CIN.
+12V
+5V
0.1
µF
0.1
µF
47
Ω
4.7
µF
VCCQP
VCCA
HIDRV
RISE/FALL
HIDRV
7000pF
1
µF
90%
50%
tR
tF
10%
65-5050-11
90%
50%
10%
RC5050
VCCD
GNDA
GNDD
GNDP
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