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 27. DC-DC Output Voltage Error vs. Reference
Voltage
8
6
4
Figure 28. DC-DC Bypass Dropout Voltage vs. Output
Current
100
80
60
2
40
0
-2
-4
0.25
0.5
Vin = 2.7V
Vin = 3.0V
Vin = 3.3V
Vin = 3.6V
Vin = 3.9V
0.75 1 1.25
Reference Voltage (V)
1.5
20
0
0
Vin = 2.7V
Vin = 3.0V
Vin = 3.3V
Vin = 3.6V
100 200 300 400 500 600 700 800 900
Output Current (mA)
Figure 29. DC-DC No-Load Supply Current vs. V IN
6
Vout = 3.4V
Figure 30. Shutdown Supply Current vs. V IN
120
5
4
3
2
1
0
Bypass
Mode
PWM
Mode
100
80
60
40
20
0
1
2
3 4
Input Voltage (V)
5
6
2.7 3.05 3.4 3.75 4.1 4.45 4.8 5.15 5.5
Input Voltage (V)
Figure 31. DC-DC Switching; V IN =3.6V, V PA =1.2V,
I OUT =50mA
1μs/Div
Figure 32. DC-DC Switching; V IN =3.6V, V PA =1.2V,
I OUT =500mA
1μs/Div
Revision 1.05
12 - 25
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