ISL62386 View Datasheet(PDF) - Intersil
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ISL62386 Datasheet PDF : 20 Pages
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ISL62386
Typical Application Circuits The below typical application circuits generate the 1.05V/15A and 1.5V/15A main supplies in a
notebook computer. The input supply (VBAT) range is 5.5V to 25V.
VBAT
6x10µF
1 .0 5 V
0.22µF
2.2µH IRF7821x2
330µF
590
1800pF
36.5k
0.022µF 16.2k
IRF7832x2
16.2k
B O O T1
V IN
BOOT2
UGATE1
PHASE1
UGATE2
PHASE2
LGATE1
LGATE2
ISL62386
OCSET1
IS E N 1
OCSET2
IS E N 2
VOUT1
VOUT2
0.22µF
IRF7821x2 2.2µH
16.2k 0.022µF
IRF7832x2
16.2k
1 .5 V
330µF
590
36.5k 1800pF
48.7k
3 .3 V
4.7µF
5V
4.7µF
1µF
A G N D 1 /2
FB1
AGND1
LDO3
LDO5
VCC
PGND
FB2
AGND2
24.3k
PGOOD
EN1
EN2
LD O 3EN
FCCM
FSET1
FSET2
14k
100k
LDO5
17.4k
0.01µF
0.01µF
AGND2
AGND1
FIGURE 3. TYPICAL APPLICATION CIRCUIT WITH INDUCTOR DCR CURRENT SENSE
VBAT
6x10µF
1 .0 5 V
330µF
0.001
2k
IRF7821x2
0.22µF
2.2µH
IRF7832x2
2k
590
1800pF 36.5k
BOOT1
V IN
BOOT2
UGATE1
PHASE1
UGATE2
PHASE2
LGATE1
LGATE2
OCSET1
IS E N 1
VOUT1
ISL62386
OCSET2
IS E N 2
VOUT2
IRF7821x2
0.22µF
2.2µH
IRF7832x2
2k
0.001
2k
1 .5 V
330µF
590
36.5k 1800pF
FB1
FB2
48.7k
3 .3 V
4.7µF
5V
4.7µF
1µF
A G N D 1 /2
AGND1
LDO3
LDO5
VCC
PGND
AGND2
PGOOD
EN1
EN2
LDO3EN
FCCM
FSET1
FSET2
14k
100k
17.4k
0.01µF
AGND2
24.3k
LDO5
0.01µF
AGND1
FIGURE 4. TYPICAL APPLICATION CIRCUIT WITH RESISTOR CURRENT SENSE WITH VCC AS ENABLE POWER SUPPLY
6
FN6831.0
February 4, 2009
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