isl6225 Intersil Corporation, isl6225 Datasheet - Page 18

• Manufacturer Part Number: isl6225
• Description: Dual Mobile-friendly Pwm Controller With Ddr Memory Option
• Manufacturer: Intersil Corporation

+2.50V
VDDQ
3.0A
C12
15nF
FIGURE 15. APPLICATION CIRCUIT FOR COMPLETE DDR MEMORY POWER SOLUTION WITH TWO-STEP CONVERSION
R3
17.8K
R5
10K
~ 6.0A
C1
1.0µF
VPULLUP
+
R9
100K
C8
330µF
+
4.6µH
VREF
POWER GOOD CH1
ENABLE
C2
10µF
L1
18
1/2 FDS6912A
0.15µF
2/2 FDS6912A
BAT54
R7
100K
WT1
CR1
C6
Q1
Q2
2.49K
R1
C3
10nF
UGATE1
PHASE1
LGATE1
OCSET1
BOOT1
PGND1
VOUT1
VSEN1
SOFT1
ISEN1
EN1
VIN
14
6
5
4
7
2
3
9
10
11
12
8
ISL6225
GND
PG1
15
1
ISL6225
13
16
DDR
PG2/REF
C4
4.7µF
28
23
24
25
22
27
26
20
19
18
17
21
VCC
BOOT2
UGATE2
PHASE2
ISEN2
LGATE2
PGND2
VOUT2
VSEN2
OCSET2
SOFT2
EN2
2/2 FDS6912A
1/2 FDS6912A
1.00K
R2
Q3
Q4
C7
0.15µF
CR2
BAT54
WT1
+
1.5µH
L2
C10
10µF
330µF
C9 +
C5
10nF
+
VCC
+5V
December 28, 2004
C11
10µF
+1.25V
3.0A
VTT
10K
10K
R4
R6
FN9049.7