A7330
DC-DC CONVERTER BUCK (STEP-DOWN)
SENSORLESS CC/CV
AiT Semiconductor Inc.
www.ait-ic.com
ELECTRICAL CHARACTERISTICS
Parameter
Input Voltage
Conditions
Min.
10
Typ.
Max.
30
Unit
V
Input Voltage Surge
32
V
VIN UVLO Turn-On Voltage
VIN UVLO Hysteresis
Standby Supply Current
Feedback Voltage
Input Voltage Rising
Input Voltage Falling
VFB=1V
9.0
9.3
1.1
9.7
V
V
0.88
800
500
1.4
mA
mV
μs
785
815
Internal Soft-Start Time
VFB=VCOMP=0.8V
Error Amplifier Transconductance
650
μA/V
ΔICOMP=±10μA
Error Amplifier DC Gain
Switching Frequency
Foldback Switching Frequency
Maximum Duty Cycle
Minimum On-Time
4000
125
18
V/V
kHz
kHz
%
VFB=0.8V
VFB=0V
85
300
ns
COMP to Current Limit
Transconductance
VCOMP=1.7V
3.47
6.4
A/V
A
Secondary Cycle-by-Cycle Current
Limit
Slope Compensation
ISET Voltage
Duty=DMAX
3
1
A
V
ISET to IOUT DC Room Temp Current
Gain
IOUT/ISET，RISET=25kΩ
100000
A/A
CC Controller DC Accuracy
OVP Pin Lock Voltage
OVP Pin Unlock Voltage
High-Side Switch ON-Resistance
Thermal Shutdown Temperature
Thermal Shutdown Temperature
Hysteresis
R
ISET=24.9kΩ, VOUT=4.0V
3600
0.833
0.764
45
mA
V
OVP Pin Voltage Rising
OVP Pin Voltage Falling
Not Include Bonding Wire
Temperature Rising
V
mΩ
℃
151
Temperature Falling
22
℃
REV1.0
- JAN 2016 RELEASED -
- 4 -
AITSEMI [ AiT Semiconductor ]
