ISL6225 Datasheet, PDF (17/19 Pages) Intersil Corporation – Dual Mobile-Friendly PWM Controller with DDR Memory Option

ISL6225
C1
1.0µF
CR1
BAT54
WT1
+ C2
C6
10µF 0.15µF
VIN
BOOT1
GND
1
14
6
DDR
13
28
23
VCC
BOOT2
CR2
BAT54
WT1
C7
0.15µF
VIN
+5.0V to +24V
VCC
+5V
+ _C11
10µF
+ C5
10µF
+2.50V
3.0A
VDDQ
~ 6.0A
L1
4.6µH
C12
15nF
R3
17.8K
+ _C8
330µF
Q1
UGATE1 ₅
PHASE1 ₄
1/2 FDS6912A
R1
2.49K
ISEN1 ₇
Q2
LGATE1 ₂
PGND1 ₃
2/2 FDS6912A
ISL6225
24 ^UGATE2
Q3
25 ^PHASE2
1/2 FDS6912A
22 ^ISEN2
R2
1.00K
27 ^LGATE2
Q4
26 ^PGND2
2/2 FDS6912A
L2
1.5µH
C9 ⁺
330µF
+1.25V
3.0A
VTT
R4
10K
VPULLUP
R5
R9
10K
100K
R7
100K
VOUT1
VSEN1
OCSET1
SOFT1
EN1
C3
10nF
9
10
11
12
8
15
PG1
20 ^VOUT2
19 ^VSEN2
18 ^OCSET2
17 ^SOFT2
21 ^EN2
16
PG2/REF
C10 R6
10nF 10K
POWER GOOD CH1
ENABLE
VREF
C4
4.7µF
FIGURE 14. APPLICATION CIRCUIT FOR COMPLETE DDR MEMORY POWER SOLUTION WITH ONE-STEP CONVERSION
17
FN9049.7
December 28, 2004