AAT3220
150mA NanoPower™ LDO Linear Regulator
Typical Characteristics
V
IN
= V
OUT
+ 1V, T
A
= 25°C, output capacitor is 1µF ceramic, I
OUT
= 40mA, unless otherwise noted.
AAT3220 Noise Spectrum
30
3.8
Line Response with 1mA Load
6
5
4
3
2
1
0
800
Noise (dBµV/rt Hz)
Output Voltage (V)
20
10
0
-10
-20
-30
1.E+01
3.6
3.4
3.2
3
2.8
2.6
-200
Input Voltage (V)
1.E+02
1.E+03
1.E+04
1.E+05
1.E+06
0
200
400
600
Frequency (Hz)
Time (µs)
Line Response with 10mA Load
3.8
6
3.8
Line Response with 100mA Load
6
5
4
3
2
1
0
800
Output Voltage (V)
Output Voltage (V)
3.6
3.4
3.2
3
2.8
2.6
-200
5
4
3
2
1
0
800
3.6
3.4
3.2
3
2.8
2.6
-200
Input Voltage (V)
Input Voltage (V)
0
200
400
600
0
200
400
600
Time (µs)
Time (µs)
Load Transient (1mA / 40mA)
4
320
4
Load Transient (1mA / 80mA)
320
Output Current (mA)
Output Current (mA)
Output Voltage (V)
240
Output Voltage (V)
240
3
160
3
160
80
80
2
-1
0
1
2
3
0
2
-1
0
1
2
3
0
Time (ms)
Time (ms)
6
3220.2006.01.1.4
AAT [ ADVANCED ANALOG TECHNOLOGY, INC. ]
