AAT3258
300mA LDO Linear Regulator with µP Reset
Typical Characteristics
Unless otherwise noted, VIN = 5V, TA = 25°C.
Over-Current Protection
AAT3258 Self Noise
(COUT = 10µF, ceramic)
1200
1000
800
600
400
200
0
10
1
0.1
Band Power:
300Hz to 50kHz = 44.6µVrms/rtHz
100Hz to 100kHz = 56.3µVrms/rtHz
0.01
-200
0.001
0.01
0.1
1
10
100
1000
10000
Time (20ms/div)
Frequency (kHz)
Normalized Reset Threshold
vs. Temperature
LDO SHDN VIH and VIL vs. VIN
1.250
1.225
1.200
1.175
1.150
1.125
1.100
1.075
1.050
1.003
1.002
1.001
1.000
0.999
0.998
0.997
VIH
VIL
2.5
3.0
3.5
4.0
4.5
5.0
5.5
-40
-20
0
20
40
60
80
Input Voltage (V)
Temperature (°C)
Power-Down Reset Propagation
Delay vs. Temperature
Power-Up Reset Timeout
vs. Temperature
320
30
300
280
260
240
220
200
180
160
25
20
15
10
5
VDO = 10mV
VDO = 100mV
-40
-20
0
20
40
60
80
100
0
-40
-20
0
20
40
60
80
Temperature (°C)
Temperature (°C)
8
3258.2006.03.1.6
AAT [ ADVANCED ANALOG TECHNOLOGY, INC. ]
