Datasheet

ADP2323 Data Sheet
Rev. A | Page 26 of 32
TYPICAL APPLICATION CIRCUITS
INTVCC
R
TOP1
10kΩ
C
C1
1000pF
R
C1
82kΩ
C
SS1
22nF
C
INT
1µF
C
DRV
1µF
C
IN1
10µF, 25V
C
BST1
0.1µF
C
BST2
0.1µF
L1
2.2µH
M1
FDS8880
M2
FDS8880
L2
4.7µH
V
IN
12V
V
IN
12V
V
OUT1
1.2V, 3A
C
OUT1
100µF
C
OUT4
47µF
V
OUT2
3.3V, 3A
R
BOT1
10kΩ
R
TOP2
10kΩ
R
C2
75kΩ
C
C2
1000pF
C
SS2
22nF
C
IN2
10µF, 25V
R
BOT2
2.21kΩ
R
OSC
120kΩ
FB1
COMP1
SS1
EN1
PVIN1
BST1
FB2 COMP2 SS2 EN2 PVIN2 BST2
MODE
SCFG
TRK2
TRK1
VDRV
ADP2323
GND
PGOOD2
PGOOD1
SYNC
RT
SW1
DL1
PGND
DL2
SW2
C
OUT2
100µF
C
OUT5
47µF
C
OUT3
100µF
09357-050
Figure 50. Using External MOSFET Application, V
IN1
= V
IN2
= 12 V, V
OUT1
= 1.2 V, I
OUT1
= 3 A, V
OUT2
= 3.3 V, I
OUT2
= 3 A, f
SW
= 500 kHz
INTVCC
R
TOP1
22kΩ
C
C1
1.2nF
R
C1
75kΩ
C
SS1
22nF
C
INT
1µF
C
DRV
1µF
C
IN1
10µF, 25V
C
BST1
0.1µF
C
BST2
0.1µF
L1
8.2µH
D1
B220A
D2
B220A
L2
8.2µH
V
IN
12V
V
IN
12V
V
OUT1
5V, 2A
C
OUT1
22µF
C
OUT3
22µF
V
OUT2
3.3V, 1.5A
R
BOT1
3kΩ
R
TOP2
10kΩ
R
C2
47kΩ
C
C2
1.5nF
C
SS2
22nF
C
IN2
10µF, 25V
R
BOT2
2.21kΩ
R
OSC
100kΩ
FB1
COMP1
SS1
EN1
PVIN1
BST1
FB2 COMP2 SS2 EN2 PVIN2 BST2
SCFG
TRK2
TRK1
VDRV
ADP2323
GND
PGOOD2
PGOOD1
SYNC
RT
SW1
DL1
PGND
DL2
SW2
MODE
C
OUT2
22µF
R
ILIM2
47kΩ
C
OUT4
22µF
09357-051
Figure 51. Using External Diode Application, V
IN1
= V
IN2
= 12 V, V
OUT1
= 5 V, I
OUT1
= 2 A, V
OUT2
= 3.3 V, I
OUT2
= 1.5 A, f
SW
= 600 kHz