AAT3221/2
150mA NanoPower™ LDO Linear Regulator
Typical Characteristics
Unless otherwise noted, V
IN
= V
OUT
+ 1V, T
A
= 25°C, C
OUT
= 5.6µF Ceramic, I
OUT
= 100mA.
Noise Spectrum
30
3.8
3.6
Line Response with 1mA Load
6
5
Noise (dB
µV/rt
Hz )
20
Output Voltage ( V )
Input
3.4
3.2
3
4
3
2
Input Voltage (V)
10
0
-10
-20
-30
1.E+01
Output
2.8
2.6
-200
1
0
800
1.E+02
1.E+03
1.E+04
1.E+05
1.E+06
0
200
400
600
Freque ncy (Hz)
Time (µs)
Line Response with 10mA Load
3.8
6
5
3.8
3.6
Line Response with 100mA Load
6
5
Output Voltage ( V )
3.6
Output Voltage ( V )
Input Voltage (V)
Input Voltage (V)
Input
3.4
3.2
3
4
3
2
Input
3.4
3.2
3
4
3
2
Output
2.8
2.6
-200
1
0
800
Output
2.8
2.6
-200
1
0
800
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 Voltage (V)
Output Voltage (V)
Output Current (mA)
240
240
Output
3
160
Output
3
160
80
80
2
-1
0
1
2
3
0
2
-1
0
1
2
3
0
Time (ms)
Time (ms)
3221.2005.12.1.11
7
AAT [ ADVANCED ANALOG TECHNOLOGY, INC. ]
