ISL6225 Datasheet, PDF (15/19 Pages) Intersil Corporation – Dual Mobile-Friendly PWM Controller with DDR Memory Option

ISL6225
C1
1.0µF
+ _C2
10µF
CR1
BAT54
WT1
C6
0.15µF
VIN
BOOT1
GND
1
14
6
DDR
13
28
23
VCC
BOOT2
CR2
BAT54
WT1
C7
0.15µF
VCC
+5V
+ C5
10µF
+2.50V
3.0A
C11
15nF
R3
17.8K
L1
4.7µH
+ _C8
330µF
Q1
UGATE1 ₅
PHASE1 ₄
1/2 FDS6912A
R1
2.00K
ISEN1 ₇
Q2
LGATE1 ₂
PGND1 ₃
2/2 FDS6912A
ISL6225
24 ^UGATE2
Q3
25 ^PHASE2
1/2 FDS6912A
22 ^ISEN2
R2
2.00K
27 ^LGATE2
Q4
26 ^PGND2
2/2 FDS6912A
L2
4.7µH
C9 ⁺
330µF
+1.80V
2.0A
R4
10K
C12
15nF
VOUT1 ₉
20 ^VOUT2
VSEN1 ₁₀
19 ^VSEN2
VPULLUP
OCSET1 ₁₁
18 ^OCSET2
SOFT1 ₁₂
17 ^SOFT2
EN1 ₈
21 ^EN2
R5
R9
10K
100K
R7
C3
100K 10nF
15
16
C4
10nF
R8
100K
R6
10K
PG1
PG2/REF
POWER GOOD CH1
ENABLE
POWER GOOD CH2
FIGURE 12. DUAL OUTPUT APPLICATION CIRCUIT FOR TWO-STEP CONVERSION
15
FN9049.7
December 28, 2004