A7122A
DC-DC CONVERTER BUCK (STEP-DOWN)
5.5V 2A 1.3MHz SYNCHRONOUS
AiT Semiconductor Inc.
www.ait-ic.com
ELECTRICAL CHARACTERISTICS
VDD=5V, TA=25°C
Parameter
Input Voltage Range
Feedback Voltage
Feedback Leakage Current
Quiescent Current
Shutdown Current
Switching Frequency
PMOSFET RDSON
Symbol
VIN
Conditions
Min.
2.5
Typ.
Max.
5.5
Unit
V
VFB
0.585
0.6
0.1
50
0.615
0.4
V
IFB
μA
μA
μA
MHz
mΩ
mΩ
A
IQ
Active, VFB=0.65V
Shutdown
ISD
1
FSW
RONP
RONN
ILIMIT
1.3
120
80
NMOSFET RDSON
Peak Current Limit
2.5
1.5
VIN=5.5V,VSW=0 or 5.5V,
VEN=0V
SW Leakage Current
ISW
10
1
μA
EN Leakage Current
IEN
VENH
μA
V
EN Input High Voltage
EN Input Low Voltage
Thermal Shutdown
VENL
0.4
V
TSD
150
15
℃
℃
Thermal Shutdown Hysteresis
HYSTSD
REV1.0
- MAY 2016 RELEASED -
- 4 -
AITSEMI [ AiT Semiconductor ]
