as1339 austriamicrosystems, as1339 Datasheet - Page 14

• Manufacturer Part Number: as1339
• Description: 650ma Rf Step-down Dc-dc For Pa, With Two Ldos
• Manufacturer: austriamicrosystems

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 41. LDO Quiescent Current vs. V
Figure 43. LDO PSRR vs. Freq.; V
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Figure 39. DC-DC Line Transient; V
-10
-20
-30
-40
-50
-60
-70
-80
80
70
60
50
40
30
20
10
0
0
10
1
2.85V, V
V
OUT
= 1.2V, R
2
100
RIPPLE
Frequency (Hz)
Input Voltage (V)
50µs/Div
3
LOAD
= 200mV
1000
= 10
IN
IN
4
PP
Ω
= 3.2V, V
= 4.0V to 3.5V,
10000
, C
both LDO's
one LDO
4mA
no Load
IN
OUT
5
=100nF
OUT
100000
=
Revision 1.02
6
Figure 44. LDO Output Noise vs. Freq.; V
Figure 40. DC-DC Load Transient; I
Figure 42. LDO Line Regulation, V
0.01
2.88
2.86
2.84
2.82
2.78
2.76
2.74
2.72
0.1
2.9
2.8
2.7
10
1
2.7 3.05 3.4 3.75 4.1 4.45 4.8 5.15 5.5
10
V
500mA, V
OUT
= 2.85V, C
100
IN
Frequency (Hz)
Input Voltage (V)
= 3.6V, V
50µs/Div
OUT
1000
=100nF
OUT
OUT
OUT
= 2.5V
10000
= 0mA to
vs. V
Iout = 0mA
Iout = 1mA
Iout = 10mA
Iout = 20mA
10mA
no Load
IN
= 3.2V,
IN
100000
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