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A7122 Datasheet(PDF) 4 Page - AIT Components Ltd.

No. de Pieza. A7122
Descripción  DC-DC CONVERTER BUCK SYNCHRONOUS BUCK CONVERTER
Descarga  13 Pages
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Fabricante  AITCOMPONENTS [AIT Components Ltd.]
Página de inicio  http://aitcomponents.com
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A7122 Datasheet(HTML) 4 Page - AIT Components Ltd.

 
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AiT Semiconductor Inc.
www.ait-ic.com
A7122
DC-DC CONVERTER BUCK (STEP-DOWN)
2A 3MHz 6V SYNCHRONOUS BUCK CONVERTER
REV1.1
- JUL 2012 RELEASED, DEC 2014 UPDATED -
- 4 -
ELECTRICAL CHARACTERISTICS
VIN=5V, TA=25
°C
Parameter
Symbol
Conditions
Min.
Typ.
Max.
Unit
Input Voltage Range
VDD
2.6
6.0
V
Input Under Voltage Lockout
UVLO
Increase VIN
2.1
2.2
V
Feedback Voltage
VREF
VIN=5V, VEN=5V
0.588
0.6
0.612
V
Feedback Leakage current
IFBLK
0.01
0.1
uA
Quiescent Current
IQ
Active, VFB=0.65V,
No Switching
30
uA
Shutdown
0.1
1
uA
Line Regulation
LnReg
VIN=2.7V to 5.5V
0.04
%/V
Load Regulation
LdReg
IOUT=0.1 to 2A
0.15
%/A
Switching Frequency
FSOC
2.4
3
3.6
MHz
PMOS Rdson
RDSONP
ISW=200mA
100
120
m
Ω
NMOS Rdson
RDSONN
ISW=200mA
80
100
m
Ω
Peak Current Limit
ILIMIT
2.5
3
A
SW Leakage Current
ISWLK
VOUT=5.5V, EN=GND
10
uA
EN/MODE High Threshold
VENH, VMDH
1.5
V
EN/MODE Low Threshold
VENL, VMDL
0.4
V
EN/MODE Leakage Current
IENLK, IMDLK
EN=MODE=GND
1
uA
Discharge Resistance
RDISCHARGE
EN=GND
180
300
450
Ω


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