SC480 SEMTECH [Semtech Corporation], SC480 Datasheet - Page 20

• Manufacturer Part Number: SC480
• Description: Complete DDR1/2/3 Memory Power Supply
• Manufacturer: SEMTECH [Semtech Corporation]

© 2006 Semtech Corp.
POWER MANAGEMENT
POWER MANAGEMENT
Application Information (Cont.)
VBAT
REF
VTT
VDDQ
5V
R2
C5
10uF
0805
VDDQ
C13
1nF
1MEG
C6
10uF
0805
R5
1uF
C14
10uF
10R
C7
0805
R3
C8
0.1uF
5V
10R
1uF
C4
C15
1uF
Figure 7 - Reference Design
1
2
3
4
5
6
MBR0530
D1
VTTS
VSSA
TON
REF
VCCA
PGND2
0.1uF
C16
20
SC480
U1
C1
0.1uF
PGND1
PGND1
1.8V fixed: connect to 5V
2.5V fixed: connect to VSSA
Adjustable 1.5V-3.0V: connect to divider network
IRF7811
IRF7832
VDDP
VDDP
PGD
ILIM
PAD
Q1
Q2
18
17
16
15
14
13
PAD
Vishay IHLP-5050
220uF/12m
1.5uH
L1
5.62K
R1
*Sanyo 4TPL220MC
C9*
C12
1uF
220uF/12m
+
C2
10uF/25V
1210
R4
10K
C10*
EN/PSV
VTT_EN
www.semtech.com
PGOOD
5V
SC480
+
VDDQ
C3
10uF/25V
1210
VBAT
0.1uF
C11