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ISL85415(2013_07) 查看數據表(PDF) - Intersil
零件编号
产品描述 (功能)
生产厂家
ISL85415
(Rev.:2013_07)
Wide VIN 500mA Synchronous Buck Regulator
Intersil
ISL85415 Datasheet PDF : 23 Pages
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ISL85415
Typical Application Schematics
CBOOT
100nF
VOUT
COUT
10µF
L1
22µH
CVIN
10µF
1
SS
2
SYNC
3
BOOT
4
VIN
5
PHASE
6
PGND
GND
FS
12
11
COMP
10
FB
9
VCC
PG
EN
R2
R3
CVCC
1µF
CFB
FIGURE 3. INTERNAL DEFAULT PARAMETER SELECTION
CSS
CBOOT
100nF
VOUT
COUT
10µF
L1
22µH
CVIN
10µF
1
SS
2
SYNC
3
BOOT
4
VIN
5
PHASE
6
PGND
GND
12
FS
11
COMP
10
FB
9
VCC
PG
EN
RFS
R2
R3
CVCC
1µF
RCOMP
CCOMP
CFB
V
OUT
L
1
(V)
(µH)
12
45
5
22
3.3
22
2.5
22
1.8
22
C
OUT
(µF)
10
2x22
2x22
2x22
22
FIGURE 4. USER PROGRAMMABLE PARAMETER SELECTION
TABLE 2. EXTERNAL COMPONENT SELECTION
R
2
R
3
C
FB
R
FS
(k
Ω
)
(k
Ω
)
(pF)
(k
Ω
)
90.9
4.75
22
115
90.9
12.4
100
120
90.9
20
100
120
90.9
28.7
100
120
100
50
22
120
R
COMP
(k
Ω
)
100
100
100
100
50
C
COMP
(pF)
470
470
470
470
470
4
FN8373.0
July 15, 2013
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