ISL6445 Datasheet, PDF (2/15 Pages) Intersil Corporation – 1.4MHz Dual, 180 Out-of-Phase, Step-Down PWM Controller

ISL6445
Typical Application Schematic
D1
BAT54HT1
C3
10µF
C4
0.1µF
VIN
SS1
17
12
BOOT1
23
C2
4.7µF
VCC5
7
SS2
9
BOOT2
2
C5
0.1µF
VCC5
+ C1
56µF
D2
BAT54HT1
C6
10µF
+12V
VOUT1
+1.8V, 2A
R3
12.4k
C9 +
150µF
R4
10k
C7
0.1µF
L1
3.2µH
Q1
FDS6912A
UGATE1 ₂₂
PHASE1 ₂₁
R1 _{ISEN1 20}
1.4K
LGATE1 ₂₄
ISL6445IA
3 ^UGATE2
4 ^PHASE2
5 ^{ISEN2 R2}
1.4k
1 ^LGATE2
PGND ₁₉
11 ^FB2
FB1 ₁₄
SD1 ₁₈
SD2
8
16 13
SGND
BIAS
OCSET1
15
R7
121k
OCSET2
10
R8
121k
6
PGOOD
C8
0.1µF
L2
3.2µH
Q2
FDS6912A
R9
10k
VCC5
+ ^C10
150µF
VOUT2
+3.3V, 2A
R5
31.6k
R6
10k
PGOOD
2
FN9230.1
June 3, 2008