ADP3208C Ver la hoja de datos (PDF) - ON Semiconductor
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ADP3208C Datasheet PDF : 37 Pages
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ADP3208C
TYPICAL PERFORMANCE CHARACTERISTICS
VVID = 1.5 V, TA = 20°C to 100°C, unless otherwise noted.
95
90
85
80
75
70
65
60
55
50
0
VIN = 9.0 V
VIN = 9.0 V
VOUT = 1.2 V
fSW = 305 kHz
5 10 15 20 25 30 35 40 45
LOAD CURRENT (A)
Figure 7. PWM Mode Efficiency vs. Load Current
SW2
SW1
OUTPUT VOLTAGE
Input = 12 V, Output = 1.0 V
44 A to 9 A Load Step
Figure 8. Load Transient with 2−Phases
SW2
OUTPUT RIPPLE
SW1
OUTPUT VOLTAGE
Input = 12 V, Output = 1.0 V
9 A to 44 A Load Step
Figure 9. Load Transient with 2 Phases
CSREF to CSCOMP
SW1
SW2
Input = 12 V, Output = 1.1 V
No Load
Figure 10. Switching Waveforms in 2 Phase
OUTPUT RIPPLE
COMP
SW1
SW2
Input = 12 V, Output = 1.1 V
No Load
Figure 11. Switching Waveforms in 2−Phase
400
350
VARFREQ = 0 V
300
250
VARFREQ = 5.0 V
200
150
100
50
0
0.25
RT = 187 kΩ
2−Phase Mode
0.5
0.75
1
1.25
1.5
VID OUTPUT VOLTAGE (V)
Figure 12. Switching Frequency vs. VID Output
Voltage in PWM Mode
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