isl8540 Intersil Corporation, isl8540 Datasheet - Page 6

• Manufacturer Part Number: isl8540
• Description: Dc/dc Power Switching Regulator
• Manufacturer: Intersil Corporation

VIN 18V TO 40V
PGND
VIN 9V TO 40V
PGND
VIN
150µF
VIN
C9
150µF
C9
1µF
C3
+
1µF
C3
+
0.1µF
0.1µF
C4
C4
6
470pF
470pF
20k
C1
C1
R1
20k
R1
FIGURE 3. TYPICAL SCHEMATIC FOR ISL8540 (12V V
FIGURE 2. TYPICAL SCHEMATIC FOR ISL8540 (5V V
SGND
RTCT
VIN
VIN
LX
LX
BOOT
EN#
VCC5
SYNC
BOOT
SGND
RTCT
VIN
VIN
LX
LX
EN#
VCC5
SYNC
ISL8540
SS
0.1µF
ISL8560
SS
C5
0.1µF
C5
PGOOD
COMP
PGND
REF
VIN
VIN
LX
LX
ISL8540
FB
PGOOD
COMP
PGND
REF
VIN
VIN
100pF
LX
LX
0.1µF
C10
FB
C1
301k
R4
0.1µF
100pF
C1
C10
C11
1µF
390pF
390k
C6
R4
B260
D1
15µH
VCC5
100k
L1
R5
470µF
820pF
C11
1µF
C8
C6
B260
D1
OUT
OUT
+
51.1k
VCC5
R2
22µH
100k
L1
R5
)
)
470µF
C8
16.2k
R3
OUTPUT
100pF
5.62k
R6
C7
5V
+
51.1k
R2
5.62k
R3
OUTPUT
330pF
5.62k
R6
12V
C7
September 18, 2007
FN6495.4