as1339 austriamicrosystems, as1339 Datasheet - Page 10

• 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 17. DC-DC Efficiency vs V
Figure 19. DC-DC Efficiency vs V
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Figure 15. DC-DC Load Regulation, V
1.83
1.82
1.81
1.80
1.79
1.78
1.77
100
100
95
90
85
80
90
80
70
60
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
1
V
OUT
= 1.8V
Iout = 300mA
Iout = 400mA
Iout = 500mA
Iout = 600mA
Output Current (mA)
Vin = 2.7V
Vin = 3.3V
Vin = 3.9V
Input Voltage (V)
Input Voltage (V)
10
Bypass
Mode
PWM
Mode
IN
IN
; V
; V
100
OUT
OUT
Iout = 300mA
Iout = 400mA
Iout = 500mA
Iout = 600mA
OUT
Vin = 3.0V
Vin = 3.6V
vs. I
= 2.0V
= 3.8V
OUT
;
1000
Revision 1.02
Figure 20. DC-DC Efficiency vs V
Figure 16. DC-DC Load Regulation, V
Figure 18. DC-DC Efficiency vs V
100
2.23
2.22
2.21
2.20
2.19
2.18
2.17
100
95
90
85
80
90
80
70
60
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
1
V
OUT
= 2.2V
Bypass
Mode
Output Current (mA)
Vin = 2.7V
Vin = 3.3V
Vin = 3.9V
Input Voltage (V)
Input Voltage (V)
10
PWM
Mode
IN
IN
; V
; V
100
OUT
OUT
OUT
Iout = 300mA
Iout = 400mA
Iout = 500mA
Iout = 600mA
Vin = 3.0V
Vin = 3.6V
Iout = 300mA
Iout = 400mA
Iout = 500mA
Iout = 600mA
vs. I
= 3.4V
= 1.5V
OUT
1000
;
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