A7406A
AiT Semiconductor Inc.
DC-DC CONVERTER BUCK (STEP-DOWN)
40V, 600mA ASYNCHRONOUS
www.ait-ic.com
ELECTRICAL CHARACTERISTICS
VIN=12V, VEN=2V, TA=25ºC, unless otherwise stated.
Parameter
Feedback Voltage
Symbol
VFB
Conditions
Min.
-
Typ.
Max.
-
Unit
V
0.794
-
Upper Switch ON Resistance
Vbst-VSW=5V
RSW
ISWLEAK
ILIM
500
0.1
1
-
1
-
mΩ
μA
A
Upper Switch Leakage
Current Limit
VEN=0V, VSW=0V
-
-
Transconductance
Gcs
COMP to SENSE
-
3
-
A/V
V
4.2
Minimum Operating Voltage
VIN MIN
-
-
3.3
UVLO Up Threshold
UVLO Hysteresis
Soft-Start Time
VIN(UVLO)
VIN(UVLO) HYS
tSS
-
4.2
V
V
-
-
-
-
0.8
0.5
1.8
-
-
-
FB from 0 to 1.8V
ms
MHz
Oscillator Frequency
Minimum Switch ON
Time
fOSC
tON MIN
100
-
ns
-
-
Shutdown Current
Quiescent Current
Thermal Shutdown
Enable up threshold
Enable Threshold Hysteresis
ISD
IQ
VEN<0.3V
3
200
150
-
15
μA
μA
°C
V
VFB=0.9V，No load
-
-
-
TSD
1.6
-
VENH
VENHYS
2.0
-
0.6
V
REV1.0
- MAR 2018 RELEASED -
- 4 -
AITSEMI [ AiT Semiconductor ]
