ADP3208D ON Semiconductor, ADP3208D Datasheet - Page 12

• Manufacturer Part Number: ADP3208D
• Description: 7-bit, Programmable, Dual-phase, Mobile, Cpu, Synchronous Buck Controller
• Manufacturer: ON Semiconductor

Figure 15. Per Phase Switching Frequency vs. RT
1000
0.8
0.6
0.4
0.2
Figure 17. VCC Current vs. VCC Voltage with
100
350
300
250
200
150
100
Figure 13. Switching Frequency vs. Output
0
50
0
0
10
0
2−Phase Configuration
1
Voltage in RPM Mode
Enable Low
Resistance
0.5
OUTPUT VOLTAGE (V)
2
Rt RESISTANCE (k )
VID = 0.8125
VCC VOLTAGE (V)
VID = 1.1 V
VID = 0.6125
100
3
TYPICAL PERFORMANCE CHARACTERISTICS
VID = 1.4125 V
V
VID
W
1.0
4
VID = 1.2125 V
= 1.5 V, T
RT = 237 k
RPM = 80.5 k
VDC = 12 V
EN = LOW
5
A
W
= 20°C to 100°C, unless otherwise noted.
W
1000
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1.5
6
12
1.05
0.95
0.85
0.9
1
1200
1000
Figure 14. IMON Voltage vs. Output Current
0
800
600
400
200
0
0
Figure 16. Load Line Accuracy
Figure 18. Startup Waveforms
10
20
-2%
1-Phase
PSI = Low
OUTPUT POWER ( )
20
Load (A)
+2%
40
OUTPUT VOLTAGE
30
W
PWRGND
CLKEN
EN
60
2-Phase
PSI = High
40
80
50