as1339 austriamicrosystems, as1339 Datasheet - Page 11

• 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 23. DC-DC Line Regulation, V
Figure 25. DC-DC Line Regulation, V
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Figure 21. DC-DC Efficiency vs Input Voltage;
1.53
1.52
1.51
1.50
1.49
1.48
1.47
4.5
3.5
2.5
100
90
80
70
60
4
3
2
2.7 3.05 3.4 3.75 4.1 4.45 4.8 5.15 5.5
2.7 3.05 3.4 3.75 4.1 4.45 4.8 5.15 5.5
2.7 3.05 3.4 3.75 4.1 4.45 4.8 5.15 5.5
V
V
V
OUT
OUT
OUT
= 1.5V
= 1.0V
= 3.4V
Bypass
Mode
Input Voltage (V)
Input Voltage (V)
Input Voltage (V)
PWM
Mode
OUT
OUT
Iout = 300mA
Iout = 400mA
Iout = 500mA
Iout = 600mA
Iout = 300mA
Iout = 400mA
Iout = 500mA
Iout = 600mA
Iout = 300mA
Iout = 400mA
Iout = 500mA
Iout = 600mA
vs. V
vs. V
IN
IN
;
;
Revision 1.02
Figure 26. DC-DC Line Regulation, V
Figure 22. DC-DC Line Regulation, V
Figure 24. DC-DC Line Regulation, V
1.03
1.02
1.01
0.99
0.98
0.97
4.5
3.5
2.5
2.03
2.02
2.01
2.00
1.99
1.98
1.97
4
3
2
1
2.7 3.05
2.7 3.05 3.4 3.75 4.1 4.45 4.8 5.15 5.5
2.7 3.05 3.4 3.75 4.1 4.45 4.8 5.15 5.5
V
V
V
OUT
OUT
OUT
= 1.0V
= 3.8V
= 2.0V
3.4 3.75
Input Voltage (V)
Input Voltage (V)
Input Voltage (V)
Bypass
Mode
4.1 4.45 4.8
PWM
Mode
OUT
OUT
OUT
Iout = 300mA
Iout = 400mA
Iout = 500mA
Iout = 600mA
Iout = 300mA
Iout = 400mA
Iout = 500mA
Iout = 600mA
Iout = 300mA
Iout = 400mA
Iout = 500mA
Iout = 600mA
vs. V
vs. V
vs. V
5.15 5.5
IN
IN
IN
;
;
;
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