ISL6444_07 Datasheet, PDF (16/19 Pages) Intersil Corporation – Dual PWM Controller with DDR Memory Option for Gateway Applications

ISL6444
C1
10μF
+12.0V
GND
+5.0V
CR1
Q1
1/2 IRF7313
C6
0.1μF
L1
10.0μH
+
R3
6.89k
C8
330μF
Q2
2/2 IRF7313
R5
10k
C3
0.01μF
SOFT1
VIN
12 ¹⁴
VCC
28 ₁₇
C4
0.01μF
SOFT2
BOOT1
6
BOOT2
23
UGATE1
PHASE1
R1 _ISEN1
2k
LGATE1
PGND1
VSEN1
VOUT1
EN1
PG1
R7 OCSET1
5
24
4
25
7
22
ISL6444
2
27
3
26
10
19
9
20
8
21
15
16
11
1
18
13
UGATE2
PHASE2
ISEN2 ^R2
2k
LGATE2
PGND2
VSEN2
VOUT2
EN2
PG2/REF
OCSET2 R8
GND
DDR
CR2
+
C5
10μF
Q3
1/2 IRF7313
C7
0.1μF
L2
4.7μH
C9
+
Q4
330μF
2/2 IRF7313
R4
6.89k
R6
10k
R9 0.01
R10 0.01
+
C10
330μF
+ ^C11
330μF
VOUT
+1.5V
(8A)
FIGURE 11. SINGLE-OUTPUT SPLIT INPUT POWER SUPPLY
16
FN9069.3
April 12, 2007