5
Schematic
12VIN
Q1
ISL6553
L2
C4
R4
1
μ
F
20k
Ω
400nH
VID2
VID1
GND
VID4
VCC
PWM2
PGOOD
PWM1
FIGURE 9. APPLICATION CIRCUIT
C6
1
μ
F
FS/EN
FB
COMP
VSEN
ISEN1
VID3
ISEN2
5VIN
HIP6601
GND
VCC
BOOT
PHASE
PV
CC
UGATE
LGATE
PWM
TP3
R1
1.87k
Ω
0.1
μ
F
C3
TP2
C5
100
μ
F
C1
1000
μ
F
1
μ
H
L1
L3
C9
1
μ
F
400nH
C6
1
μ
F
HIP6601
GND
VCC
BOOT
PHASE
PV
C
C
UGATE
LGATE
PWM
TP4
R2
1.87k
Ω
0.1
μ
F
C8
TP6
C10
100
μ
F
C2
1000
μ
F
TP5
TP1
R5
C18-23
560
μ
F
C13-17, 41
22
μ
F
TP8
Q2
Q3
Q4
0.1
μ
F
C7
2.2nF
C11
1.82k
Ω
R6
51.1k
Ω
TP7
R3
107k
Ω
R7
1k
Ω
R9
1k
Ω
R8
10k
Ω
VID0
RED
GREEN
Q5
2N7002
JP1
Application Note AN9961
