AAT2522 Datasheet, PDF (7/19 Pages) Skyworks Solutions Inc. – Dual High-Current, Low-Noise, Step-Down Regulator

DATA SHEET
AAT2522
Dual High-Current, Low-Noise, Step-Down Regulator
Typical Characteristics
Step-Down Converter Output Voltage Error
vs. Temperature
(VIN = 3.6V; VOUT = 2.5V)
2.0
1.5
1.0
0.5
0.0
-0.5
-1.0
IOUT = 1A
-1.5
IOUT = 1.5A
I_OUT = 3A
-2.0
-50
-25
0
25
50
75
100
Temperature (°C)
Step-Down Converter Output Voltage Error
vs. Temperature
(VIN = 4.2V; VOUT = 3.3V)
2.0
1.5
IOUT = 1A
I_OUT = 1.5A
1.0
IOUT = 2A
0.5
I_OUT = 3A
0.0
-0.5
-1.0
-1.5
-2.0
-50
-25
0
25
50
75
100
Temperature (°C)
No Load Input Current vs. Input Voltage
(VEN1 = VEN2 = VIN)
130
120
110
100
90
80
70
85°C
60
25°C
-40°C
50
2.7 2.9 3.1 3.3 3.5 3.7 3.9 4.1 4.3 4.5 4.7 4.9 5.1 5.3 5.5
Input Voltage (V)
Step-Down Converter Switching Frequency
vs. Input Voltage
(VOUT = 1.8V; IOUT = 1.5A)
5
4
3
2
1
0
-1
-2
-3
-4
-5
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
Input Voltage (V)
Step-Down Converter Switching Frequency
vs. Temperature
(VIN = 3.6V; VOUT = 1.8V; IOUT = 1.5A)
1.60
1.55
1.50
1.45
1.40
1.35
1.30
1.25
1.20
-40
-20
0
20
40
60
80
100
Temperature (°C)
Step-Down Converter Soft Start
(VIN = 3.6V; VOUT = 1.8V; IOUT = 1.5A; CFF = 100pF)
4
3
2
1
0
2
1
0
Time (100µs/div)
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [e-mail] • www.skyworksinc.com
202032A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • June 8, 2012
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