W83301R
Preliminary
5. Application Circuit
Figure 3. Mode B (SDRAM Mode) Application Circuit
5VSB
C1
0.1u
3.3Vdual
5V
U1
6
5VS
B
STRdrv1
16
Q2
MOSFET N
20
Q1
MOSFET N
C2
0.1u
5VDRV
STRsen1
19
5VDUAL
C3
1000u
2.5V
Q3
MOSFET N
15
5VDLSB
STRdrv2
1
Q4
MOSFET N
C4
0.1u
5VDUAL
17
C5
1000u
10
12
PWOK
5VDLEN
S3
14
11
PWOK
5VDLEN
S3
S5
STRsen2
2
3.3Vdual
C6
1000u
C7
0.1u
3.3V
STRdrv3
3
Q5
MOSFET N
(chipset)
SLP_S5#
13
5VSB
VSET1
VSET0
VSET1 GN
D
5
SS
18
C1
7
8
C2
Chr
STRsen3
Pm
p
4
1.8V
C8
1000u
9
Connect VSET0 and VSET1 as following table
to set operation mode and output voltage
C9
0.1u
C10
0.1u
C11
0.1u
Mode
VSET0
5V
VSET1
5V
NC
0V
STR1
2.5V
DUAL
2.6V
DUAL
2.7V
DUAL
STR2
3.3V
DUAL
3.4V
DUAL
3.5V
DUAL
STR3
1.8V
DUAL
1.8V
DUAL
1.8V
DUAL
SDRAM
5V
5V
Confidential
Revision 0.6
5
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