ISL6224_06 Datasheet, PDF (12/13 Pages) Intersil Corporation – Single Output Mobile-Friendly PWM Controller

ISL6224
R2 OCSET
4
TBD
VCC
11
BOOT
15
CR1
C2
0.015µF
FCCM
EN
SOFT
PGOOD
16
14 ^UGATE
PHASE
13
ISL6224
ISEN ^Risen
3
12
TBD
7
2
8
LGATE
10
9 PGND
VSEN
6
VOUT
1
5
GND
VIN
+ C1
33µF
+5.0V_CC
GND
Q1
1/2 FDS6912A
C4
0.1µF
L1
6.4µH
+V2_5S
(2A)
C5 +
Q2
330µF
2/2 FDS6912A
R3
C6
R4
R5
FIGURE 6. APPLICATION CIRCUIT FOR TWO-STEP 300kHz CONVERSION (MODE 2)
R2
OCSET
4
TBD
VCC
11
BOOT
15
CR1
C2
0.015µF
FCCM
EN
16
ISL6224
3
14 ^UGATE
PHASE
13
ISEN ^Risen
12
TBD
SOFT
7
LGATE
10
9 ^PGND
PGOOD
2
8
VSEN
6
VOUT
1
5
GND
VIN
+ _C1
33µF
+5.0V_CC
GND
Q1
1/2 FDS6912A
C4
0.1µF
L1
6.4µH
+V2_5S
(2A)
C5 +
Q2
330µF
2/2 FDS6912A
R3
C6
R4
FIGURE 7. APPLICATION CIRCUIT FOR TWO-STEP 600kHz CONVERSION (MODE 3)
12
FN9042.8
June 8, 2006