AAT3223
250mA NanoPower™ LDO
Linear Regulator with Power-OK
Typical Characteristics
Unless otherwise noted, V
IN
= V
OUT
+ 1V, T
A
= 25°C, C
IN
= C
OUT
= 1µF ceramic.
Noise Spectrum
30
3.8
3.6
Line Response With 1mA Load
6
5
Noise (dB
µV/rt
Hz )
Output Voltage (V)
20
10
0
-10
-20
-30
1.E+01
Input Voltage (V)
Input
3.4
3.2
3
4
3
2
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
Frequency (Hz)
Time (µs)
Line Response With 10mA Load
3.8
3.6
6
5
3.8
3.6
Line Response With 100mA Load
6
5
Output Voltage (V)
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 Current (mA)
Output Voltage (V)
240
Output Voltage (V)
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)
6
3223.2006.03.1.5
AAT [ ADVANCED ANALOG TECHNOLOGY, INC. ]
