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AS1339
Datasheet - Ty p i c a l O p e r a t i o n C h a r a c t e r i s t i c s
Figure 39. DC-DC Line Transient; V IN = 4.0V to 3.5V,
V OUT = 1.2V, R LOAD = 10 Ω
50μs/Div
Figure 41. LDO Quiescent Current vs. V IN
80
70
60
50
40
Figure 40. DC-DC Load Transient; I OUT = 0mA to
500mA, V IN = 3.6V, V OUT = 2.5V
50μs/Div
Figure 42. LDO Line Regulation, V OUT vs. V IN
2.9
2.88
2.86
2.84
2.82
2.8
30
2.78
2.76
Iout = 0mA
20
10
both LDO's
one LDO
2.74
2.72
Iout = 1mA
Iout = 10mA
Iout = 20mA
0
1
2
3 4
Input Voltage (V)
5
6
2.7
2.7 3.05 3.4 3.75 4.1 4.45 4.8 5.15 5.5
Input Voltage (V)
Figure 43. LDO PSRR vs. Freq.; V IN = 3.2V, V OUT =
2.85V, V RIPPLE = 200mV PP , C OUT =100nF
0
Figure 44. LDO Output Noise vs. Freq.; V IN = 3.2V,
V OUT = 2.85V, C OUT =100nF
10
-10
-20
-30
-40
-50
-60
-70
-80
4mA
no Load
1
0.1
0.01
10mA
no Load
10
100
1000
10000
100000
10
100
1000
10000
100000
Frequency (Hz)
Frequency (Hz)
Revision 1.05
14 - 25
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