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| AAT2550_08 Datasheet, PDF (8/34 Pages) Advanced Analogic Technologies – Total Power Solution for Portable Applications | |||
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SystemPowerTM
PRODUCT DATASHEET
AAT2550178
Total Power Solution for Portable Applications
Typical Characteristics â Step-Down Converter (continued)
P-Channel RDS(ON) vs. Input Voltage
750
700
650
120°C 100°C
600
550
500
85°C
450
25°C
400
350
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
650
120°C 100°C
600
550
500
450
85°C
400
25°C
350
300
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
Input Voltage (V)
Load Transient Response
(1mA to 300mA; VIN = 3.6V; VOUT = 1.8V;
COUT = 10µF; CFF = 100pF)
2.0
1.9
VO
1.8
1.7
IO
300mA
1mA
IL
0
Time (50µs/div)
Load Transient Response
(300mA to 400mA; VIN = 3.6V;
VOUT = 1.8V; COUT = 4.7µF)
1.90
1.85 VO
1.80
1.75 IO
400mA
300mA
0.4
0.3
IL
0.2
0.1
Time (50µs/div)
Load Transient Response
(300mA to 400mA; VIN = 3.6V;
VOUT = 1.8V; COUT = 10µF)
1.90
1.85 VO
1.80
1.75 IO
400mA
300mA
0.4
IL
0.3
0.2
0.1
Time (50µs/div)
Load Transient Response
(300mA to 400mA; VIN = 3.6V; VOUT = 1.8V;
COUT = 10µF; CFF = 100pF)
1.850
1.825 VO
1.800
1.775 IO
400mA
300mA
0.4
IL
0.3
0.2
0.1
Time (50µs/div)
8
www.analogictech.com
2550.2008.02.1.3
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