AAT1121 データシートの表示（PDF） - Advanced Analogic Technologies
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AAT1121 Datasheet PDF : 20 Pages
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AAT1121
1.5MHz, 250mA Step-Down Converter
Typical Characteristics
P-Channel RDS(ON) vs. Input Voltage
1000
900
120°C 100°C
800
85°C
700
600
500
25°C
400
300
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
Input Voltage (V)
N-Channel RDS(ON) vs. Input Voltage
750
700
120°C
650
100°C
600
85°C
550
500
450
400
350
25°C
300
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
Input Voltage (V)
Load Transient Response
(10mA to 250mA; VIN = 3.6V; VOUT = 1.8V;
COUT = 4.7µF; CFF = 100pF)
2.0
1.9
VO
1.8
1.7
IO
1.6
250mA
ILX
10mA
0.2
0.0
-0.2
Time (25µs/div)
Load Transient Response
(10mA to 250mA; VIN = 3.6V; VOUT = 1.8V; COUT = 4.7µF)
2.0
1.9
VO
1.8
1.7
1.6
IO
ILX
250mA
10mA
0.2
0.0
-0.2
Time (25µs/div)
Line Response
(VOUT = 1.8V @ 250mA; CFF = 100pF)
1.90
1.85
VO
1.80
1.75
1.70
5.0
4.5
VIN
4.0
3.5
3.0
Time (25µs/div)
1121.2007.03.1.2
7
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