AAT1112 데이터 시트보기 (PDF) - Advanced Analogic Technologies
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AAT1112 Datasheet PDF : 19 Pages
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SwitchRegTM
Typical Characteristics
100
90
80
70
60
50
40
30
0.1
Efficiency vs. Output Current
(PFM Mode; VOUT = 1.2V)
VIN = 2.7V
VIN = 4.2V
VIN = 3.6V
1
10
100
1000
Output Current (mA)
10000
Efficiency vs. Output Current
(PWM Mode; VOUT = 1.2V)
100
90
80
70
60
50
40
30
20
10
0
1
VIN = 2.7V
VIN = 4.2V
VIN = 3.6V
10
100
1000
10000
Output Current (mA)
Output Voltage vs. Temperature
(VIN = 3.6V; VOUT = 1.8V; IOUT = 1A)
1.0
0.8
0.6
0.4
0.2
0
-0.2
-0.4
-0.6
-0.8
-1.0
-40
-20
0
20
40
60
80
Temperature (°C)
PRODUCT DATASHEET
AAT1112
1.5A, 1.4MHz Step-Down Converter
0.50
0.25
0.00
-0.25
-0.50
0.1
Load Regulation
(PFM Mode; VOUT = 1.2V)
VIN = 2.7V
VIN = 3.6V
VIN = 4.2V
1
10
100
1000
Output Current (mA)
10000
0.50
0.25
0.00
-0.25
-0.50
0.1
Load Regulation
(PWM Mode; VOUT = 1.2V)
VIN = 2.7V VIN = 3.6V
VIN = 4.2V
1
10
100
1000
Output Current (mA)
10000
Supply Current vs. Supply Voltage
(VOUT = 1.8V; No Load; PFM Mode)
70
65
60
85°C
25°C
55
50
45
40
35
-40°C
30
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
Supply Voltage (V)
1112.2007.11.1.2
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