Datasheet
Table Of Contents
- Features
- Applications
- Typical Application Circuit
- General Description
- Revision History
- Functional Block Diagram
- Specifications
- Absolute Maximum Ratings
- Pin Configuration and Function Descriptions
- Typical Performance Characteristics
- Theory of Operation
- Control Scheme
- PWM Mode
- PFM Mode
- Precision Enable/Shutdown
- Separate Input Voltages
- Internal Regulator (INTVCC)
- Bootstrap Circuitry
- Low-Side Driver
- Oscillator
- Synchronization
- Soft Start
- Peak Current-Limit and Short-Circuit Protection
- Voltage Tracking
- Parallel Operation
- Power Good
- Overvoltage Protection
- Undervoltage Lockout
- Thermal Shutdown
- Applications Information
- Design Example
- External Components Recommendation
- Typical Application Circuits
- Outline Dimensions
ADP2323 Data Sheet
Rev. A | Page 28 of 32
INTVCC
R
TOP1
20kΩ
C
C1
820pF
R
C1
75kΩ
C
SS1
22nF
C
INT1
1µF
C
DRV1
1µF
C
IN1
10µF, 25V
C
BST1
0.1µF
C
BST2
0.1µF
L1
3.3µH
M1
FDS8880
M2
FDS8880
L2
4.7µH
V
IN
12V
V
IN
12V
V
OUT1
1.8V, 3A
C
OUT1
100µF
C
OUT3
47µF
V
OUT2
3.3V, 3A
R
BOT1
10kΩ
R
TOP2
10kΩ
R
C2
82kΩ
C
C2
820pF
C
SS2
22nF
C
IN2
10µF, 25V
R
BOT2
2.21kΩ
R
OSC1
100kΩ
FB1
COMP1
SS1
EN1
PVIN1
BST1
FB2
COMP2
SS2
EN2
PVIN2
BST2
MODE
SCFG
TRK2
TRK1
VDRV
ADP2323
GND
PGOOD2
PGOOD1
RT
SW1
DL1
PGND
DL2
SW2
C
OUT2
47µF
C
OUT4
47µF
INTVCC
SYNC
SYNC
R
TOP3
20kΩ
C
C3
820pF
R
C3
75kΩ
C
SS3
22nF
C
INT2
1µF
C
DRV2
1µF
C
IN1
10µF, 25V
C
BST3
0.1µF
C
BST4
0.1µF
L3
3.3µH
M3
FDS8880
M4
FDS8880
L4
4.7µH
V
IN
12V
V
IN
12V
V
OUT3
1.8V, 3A
C
OUT5
100µF
C
OUT7
47µF
V
OUT4
3.3V, 3A
R
BOT3
10kΩ
R
TOP4
10kΩ
R
C4
82kΩ
C
C4
820pF
C
SS4
22nF
C
IN4
10µF, 25V
R
BOT4
2.21kΩ
R
OSC2
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
OUT6
47µF
C
OUT8
47µF
09357-054
Figure 54. Synchronization with 90° Phase Shift Between Each Channel