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AAT1153 Datasheet, PDF (6/19 Pages) Advanced Analogic Technologies – 2A Step-Down Converter
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Typical Characteristics
Efficiency vs. Output Current
(VOUT = 1.2V, TA = 25°C, L = 2.2µH, CIN = COUT = 22µF)
100
90
80
VIN = 4.2V
VIN = 3.6V
70
60 VIN = 2.5V
50
40
VIN = 5.5V
30
VIN = 5.0V
20
10
0
0.1
1
10
100
1000
10000
Output Current (mA)
Quiescent Current vs. Input Voltage
(TA = 25°C, L = 2.2µH, CIN = COUT = 22µF)
0.38
0.36
0.34
VOUT = 3.3V
0.32
0.30
0.28
VOUT = 1.8V
0.26
0.24
0.22
0.20
2.5
3.0
3.5
4.0
4.5
5.0
5.5
Input Voltage (V)
Line Regulation
(VOUT = 1.8V, L = 2.2µH, CIN = COUT = 22µF)
0.40
IOUT = 1A
IOUT = 600mA
0.20
IOUT = 1mA
0.00
IOUT = 1.5A
-0.20
IOUT = 2A
-0.40
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
Input Voltage (V)
DATA SHEET
AAT1153
2A Step-Down Converter
DC Regulation
(VOUT = 1.2V, TA = 25°C, L = 2.2µH, CIN = COUT = 22µF)
1.236
1.224
1.212
1.200
VIN = 4.2V
VIN = 5.0V
VIN = 5.5V
1.188
1.176
VIN = 2.5V
VIN = 3.6V
1.164
0
200 400 600 800 1000 1200 1400 1600 1800 2000
Output Current (mA)
Quiescent Current vs. Temperature
(L = 2.2µH, CIN = COUT = 22µF)
400
350
VIN = 4.2V
VOUT = 3.3V
300
VIN = 3.6V
250
VOUT = 1.8V
200
-40
-20
0
20
40
60
Temperature (°C)
80
100
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
6
201992B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • March 18, 2013
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