AAT2503 Datasheet, PDF (7/22 Pages) Advanced Analogic Technologies – Adjustable 3-Channel Regulator

DATA SHEET
AAT2503
Adjustable Three-Channel Regulator
Typical Characteristics—Step-Down Converter
Turn Off
(V_IN = 3.6V; V_OUT = 1.8V; I_OUT = 800mA)
6.0
ENABLE
4.0
2.0
0.0
V_OUT (1V/div)
1.8V
I_INDUCTOR
1.0
0V
0.5
0.0
-0.5
Time (100µs/div)
Line Regulation
(V_OUT = 1.8V; V_MODE/SYNC = V_IN)
1.2
0.9
0.6
0.3
I_L = 800mA
0.0
-0.3
I_L = 10mA
-0.6
I_L = 100mA
-0.9
-1.2
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
Input Voltage (V)
Line Regulation
(V_OUT = 0.9V; V_MODE/SYNC = V_IN)
1.2
0.9
0.6
0.3
I_L = 800mA
0.0
-0.3
I_L = 650mA
-0.6
-0.9
-1.2
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
Input Voltage (V)
No Load Quiescent Current vs. V_IN
(V_OUT = 1.8V; L = 2.2µH)
65
60
55 _{TA = 85°C}
50
45
40
T_A = 25°C
35 _{TA = -40°C}
30
25
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
Input Voltage (V)
No Load Quiescent Current vs. V_IN
(V_OUT = 0.9V; L = 1µH)
50
45
40 ^{TA = 85°C}
35
T_A = 25°C
30
T_A = -40°C
25
20
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
Input Voltage (V)
Output Voltage Error vs. Temperature
(V_IN = 3.6V; V_OUT = 0.9V; I_OUT = 800mA)
2.0
1.5 V_IN = 1.8V
1.0
V_IN = 2.5V
0.5
0.0
-0.5
-1.0 ^VOUT ^{= 0.9V}
-1.5
-2.0
-40
-20
0
20
40
60
80
100
Temperature (°C)
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [e-mail] • www.skyworksinc.com
202016B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • March 19, 2013
7