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

Data Sheet ADP2323
Rev. A | Page 11 of 32
540
560
580
600
620
640
660
FREQUENCY (kHz)
R
OSC
= 100kΩ
–40 –20 0 20 40 60 80 100
120
TEMPERATURE (°C)
09357-017
Figure 17. Frequency vs. Temperature
50
60
70
80
90
100
110
120
130
MOSFET RESISTOR (mΩ)
–40 –20 0 20 40 60 80
100 120
TEMPERATURE (°C)
09357-018
Figure 18. MOSFET R
DSON
vs. Temperature
09357-019
CH1 5.00V CH2 2.00V M20.0ns A CH1 1.10V
2
1
T 31.20%
SW
DL
Figure 19. Low-Side Driver Rising Edge Waveform, C
DL
= 2.2 nF
4.0
4.2
4.4
4.6
4.8
5.0
5.2
5.4
4 6 8 10 12 14 16 18 20
VOLTAGE (V)
V
IN
(V)
09357-020
Figure 20. INTVCC Voltage vs. V
IN
2.5
2.7
2.9
3.1
3.3
3.5
3.7
3.9
4.1
4.3
4.5
SSx PIN SOURCE CURRENT (µA)
–40 –20 0 20 40 60 80 100 120
TEMPERATURE (°C)
09357-021
Figure 21. SSx Pin Source Current vs. Temperature
09357-022
CH1 5.00V CH2 2.00V M20.0ns A CH1 1.10V
2
1
T 60.20%
SW
DL
Figure 22. Low-Side Driver Falling Edge Waveform, C
DL
= 2.2 nF