PRODUCT DATASHEET
AAT2603
Total Power Solution for Portable Applications
Typical Characteristics—DC-DC2 (Buck2)
Output Voltage Error vs. Temperature
Switching Frequency vs. Input Voltage
(VOUTB2 = 1.3V; VIN = 3.6V)
(VOUTB2 = 1.3V; IOUTB2 = 600mA)
0.6
1.505
IOUT = 600mA
IOUT = 0.1mA
1.5
1.495
1.49
0.4
0.2
1.485
1.48
0
-0.2
-0.4
-0.6
1.475
1.47
1.465
1.46
2.7
-40
-15
10
35
60
85
3.1
3.5
3.9
4.3
4.7
5.1
5.5
Temperature (°C)
Input Voltage (V)
P-Channel RDS(ON) vs. Input Voltage
Load Transient
(VOUTB2 = 1.3V)
(VOUTB2 = 1.3V; VIN = 3.6V; IOUTB2 = 100mA to 600mA; CFF = 0pF)
400
0.1
0.05
0
350
300
250
200
150
100
50
-0.05
-0.1
1
T = 120°C
0.5
0
T = 100°C
T = 85°C
T = 25°C
0
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
Input Voltage (V)
Time (50µs/div)
Load Transient
Load Transient
(VOUTB2 = 1.3V; VIN = 3.6V; IOUTB2 = 100mA to 600mA; CFF = 100pF)
(VOUTB2 = 1.3V; VIN = 3.6V; IOUTB2 = 300mA to 600mA; CFF = 0pF)
0.1
0.05
0
0.05
0
-0.05
-0.05
-0.1
1
1
0.5
0
0.5
0
Time (50µs/div)
Time (20µs/div)
w w w . a n a l o g i c t e c h . c o m
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2603.2008.06.1.0
ANALOGICTECH [ ADVANCED ANALOGIC TECHNOLOGIES ]
