AAT2158_08 Datasheet, PDF (5/16 Pages) Advanced Analogic Technologies – 1.5A Low Noise Step-Down Converter

SwitchReg^TM
Typical Characteristics
Efficiency vs. Output Current
(V_OUT = 3.3V)
100
90
80
70
V_IN = 4.2V ^{VIN = 5.0V}
60
V_IN = 3.6V
50
40
30
0
1
10
100
1000
10000
Output Current (mA)
Efficiency vs. Output Current
(V_OUT = 1.8V)
100
90 ^{VIN = 2.7V}
80
70
V_IN = 3.6V
V_IN = 4.2V
60
50
40
30
0
1
10
100
1000
Output Current (mA)
10000
Efficiency vs. Output Current
(V_OUT = 1.2V)
100
90 _{VIN = 2.7V}
80
70
60
V_IN = 3.6V
V_IN = 4.2V
50
40
30
0
1
10
100
1000
Output Current (mA)
10000
PRODUCT DATASHEET
AAT2158
1.5A Low Noise Step-Down Converter
Load Regulation
(V_OUT = 3.3V)
1.00
0.75
V_IN = 5.0V
0.50
0.25
V_IN = 4.2V
0.00
-0.25
-0.50
V_IN = 3.6V
-0.75
-1.00
0.1
1
10
100
1000
Output Current (mA)
10000
1.00
0.75
0.50
0.25
0.00
-0.25
-0.50
-0.75
-1.00
0.1
Load Regulation
(V_OUT = 1.8V)
V_IN = 4.2V
V_IN = 3.6V
V_IN = 2.7V
1
10
100
1000
Output Current (mA)
10000
Load Regulation
(V_OUT = 1.2V)
1.00
0.75
V_IN = 4.2V
0.50
0.25
V_IN = 2.7V
0.00
-0.25
-0.50
V_IN = 3.6V
-0.75
-1.00
0.1
1
10
100
1000
Output Current (mA)
10000
2158.2008.02.1.2
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