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AAT1189 Datasheet, PDF (5/19 Pages) Advanced Analogic Technologies – High Voltage Step-Down Regulator
SwitchRegTM
Typical Characteristics
Step-Down Converter Efficiency vs. Load
(VOUT = 3.3V; L = 4.7µH)
100
90
80
70
60
50
40
30
20
10
0
0.1
1
VIN = 6V
VIN = 8V
VIN = 12V
VIN = 18V
VIN = 24V
10
100
1000
10000
Output Current (mA)
Step-Down Converter DC Regulation
(VOUT = 3.3V; L = 4.7µH)
2.0
1.5
VIN = 6V
VIN = 8V
1.0
VIN = 12V
VIN = 18V
0.5
VIN = 24V
0.0
-0.5
-1.0
-1.5
-2.0
0.1
1
10
100
1000
Output Current (mA)
10000
Step-Down Converter Line Regulation
(VOUT = 3.3V; L = 4.7µH)
2.0
1.5
1.0
0.5
0.0
-0.5
-1.0
-1.5
-2.0
6
IOUT = 0.10mA
IOUT = 10mA
IOUT = 100mA
IOUT = 1250mA
IOUT = 2500mA
8 10 12 14 16 18 20 22 24
Input Voltage (V)
PRODUCT DATASHEET
AAT1189
High Voltage Step-Down Regulator
Step-Down Converter Efficiency vs. Load
(VOUT = 5V; L = 4.7µH)
100
90
80
70
60
50
40
30
20
10
0
0.1
1
VIN = 6V
VIN = 8V
VIN = 12V
VIN = 18V
VIN = 24V
10
100
1000
10000
Output Current (mA)
Step-Down Converter DC Regulation
(VOUT = 5V; L = 4.7µH)
3.0
2.5
2.0
1.5
1.0
0.5
0.0
-0.5
-1.0
-1.5
-2.0
-2.5
-3.0
0.1
1
VIN = 6V
VIN = 8V
VIN = 12V
VIN = 18V
VIN = 24V
10
100
1000
10000
Output Current (mA)
Step-Down Converter Line Regulation
(VOUT = 5V; L = 4.7µH)
2.0
1.5
1.0
0.5
0.0
-0.5
-1.0
-1.5
-2.0
-2.5
-3.0
-3.5
-4.0
6
IOUT = 0.10mA
IOUT = 10mA
IOUT = 100mA
IOUT = 1250mA
IOUT = 2500mA
8 10 12 14 16 18 20 22 24
Input Voltage (V)
1189.2008.06.1.0
www.analogictech.com
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